Best Wholesale Peptide Suppliers

Compare peptide suppliers offering wholesale, bulk purchasing, private label, custom manufacturing, and commercial research supply.

Independently evaluatedTesting & COAs reviewedWholesale capabilities comparedUpdated September 2026

How we score suppliers ·Are you a supplier?

Advertiser disclosure: Peptide Ad Lab may have commercial relationships with companies on this page. Position #1 is a sponsored placement and is labelled as such. Sponsorship does not change any supplier’s score, and every other position is ordered by Peptide Ad Lab score. Details.

Our top 15 wholesale peptide suppliers

#1 sponsored placement, then ranked by Peptide Ad Lab score · 15 suppliers · September 2026
#1

Amino Wholesale

Best for Wholesale research buyers

Sponsored placement
  • Third-party testing & COAs
  • Wholesale program
  • Private label
  • U.S. inventory fulfillment
9.0/10Peptide Ad Lab Score
65% evidence coverage Visit Supplier View Full Profile
See how we scored them

Overview

Amino Wholesale operates as a private B2B research supply portal aimed at qualified wholesale buyers, including resellers, laboratories, and procurement teams. The site publishes a catalog of single compounds, peptide blends, capsules, and nasal sprays, along with tiered volume pricing for 10-vial kits and individual units.

The company states that original laboratory reports and Certificates of Analysis are accessible through an online library organized by product, strength, and lot. Purchasing is handled via a quote and invoice workflow rather than a public e-commerce checkout, with fulfillment sourced from U.S. inventory. Buyers must contact the company directly to confirm exact order requirements, current stock availability, and specific lead times.

Pros
  • Published COA library organized by product, strength, and lot
  • Tiered volume pricing displayed for bulk quantities
  • In-house custom label design and printing services
Considerations
  • No public checkout or direct online purchasing
  • Exact order minimums and lead times are unstated
  • COA availability varies by product, strength, and lot
Location312 W. 2nd St #1423, Casper, WY 82601, United States
Business typeResearch supplier
In-house manufacturingNot confirmed
ShippingU.S. inventory
Minimum orderNot stated

Score breakdown weighted for this category

Testing & Documentation 25%
10.0
Business Transparency 20%
10.0
Wholesale Capabilities 25%
10.0
Manufacturing Capabilities 10%
Not assessed
Commercial Purchasing 10%
10.0
Fulfillment & Logistics 7%
Not assessed
Website / Buyer Experience 3%
10.0

Rubric score 10.0 across the 65% of the rubric verified so far, adjusted for evidence coverage to a published score of 9.0. How this is calculated

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply. Full methodology.

#2

Koi Research Labs LLC

Best for Laboratories and research institutions

  • Third-party testing & COAs
  • Wholesale program
  • Private label
  • Custom synthesis
9.6/10Peptide Ad Lab Score
88% evidence coverage Visit Supplier View Full Profile
See how we scored them

Overview

The company states it operates as a chemical supplier offering research-grade peptides, custom synthesis, and bulk wholesale programs aimed at scientific researchers, academic laboratories, and biotech companies. According to the site, products are synthesized and lyophilized in the United States, targeting a purity level of 99% or higher. The platform publishes lot-specific Certificates of Analysis and analytical documentation, including HPLC purity and LC-MS identity confirmation, for its catalog items.

The supplier states that testing is conducted by an independent ISO/IEC 17025-accredited laboratory, with chromatograms and endotoxin testing results provided per batch. Purchasing is handled online or through wholesale application portals, featuring same-day fulfillment for orders placed before the daily cutoff. Buyers must inquire directly for custom quotes, specific volume pricing tiers, or unlisted synthesis modifications.

Pros
  • Independent third-party COAs published per batch
  • USA-synthesized and lyophilized inventory
  • Wholesale and custom synthesis options available
Considerations
  • Standard wholesale catalog minimum order quantity of 50 vials per compound
  • Strictly restricted to in-vitro laboratory research use
  • Wholesale pricing requires institutional application and verification
LocationSheridan, Wyoming, USA
Business typeResearch supplier
In-house manufacturingNot confirmed
ShippingUnited States, Canada, and international markets
Minimum order50 vials per compound (wholesale catalog)

Score breakdown weighted for this category

Testing & Documentation 25%
10.0
Business Transparency 20%
10.0
Wholesale Capabilities 25%
10.0
Manufacturing Capabilities 10%
10.0
Commercial Purchasing 10%
10.0
Fulfillment & Logistics 7%
10.0
Website / Buyer Experience 3%
10.0

Rubric score 10.0 across the 88% of the rubric verified so far, adjusted for evidence coverage to a published score of 9.6. How this is calculated

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply. Full methodology.

#3

Kylo Peptides

Best for Research laboratories and volume buyers

  • Third-party testing & COAs
  • Wholesale program
  • Private label
  • Custom synthesis
9.4/10Peptide Ad Lab Score
78% evidence coverage Visit Supplier View Full Profile
See how we scored them

Overview

The company states it is a US-based chemical and research peptide supplier serving scientific researchers, academic laboratories, and biotech or pharmaceutical companies. The site offers individual research peptides, peptide blends, peptide stacks, and laboratory supplies intended for preclinical and in vitro research. According to the company, products undergo synthesis and lyophilization in the United States, and the site publishes batch-specific Certificates of Analysis (COAs) in a public library.

The company states that every batch is tested for identity, purity, endotoxins, sterility, heavy metals, and net content by independent laboratories such as Freedom Diagnostics, Janoshik Analytical, and Vanguard Laboratory. Customers complete purchases through a secure online checkout or apply for a wholesale partner program offering tiered volume pricing and lot-locked supply. The site states that orders dispatch within 24 hours on business days, with free shipping available on orders over $150. Buyers would still need to inquire about specific international shipping destination policies and exact catalog minimum order requirements.

Pros
  • Publishes batch-specific Certificates of Analysis with third-party testing documentation.
  • Dispatches orders within 24 hours on business days.
  • Offers a wholesale partner program with tiered volume pricing and lot-locked supply.
Considerations
  • Specific international shipping destination details are unstated in general terms.
  • Standard catalog minimum order quantity is unstated.
LocationSheridan, Wyoming, USA
Business typeResearch supplier
In-house manufacturingNot confirmed
ShippingUnited States, Canada, United Kingdom, EU member state, Australia
Minimum orderNot stated

Score breakdown weighted for this category

Testing & Documentation 25%
10.0
Business Transparency 20%
10.0
Wholesale Capabilities 25%
10.0
Manufacturing Capabilities 10%
Not assessed
Commercial Purchasing 10%
10.0
Fulfillment & Logistics 7%
10.0
Website / Buyer Experience 3%
10.0

Rubric score 10.0 across the 78% of the rubric verified so far, adjusted for evidence coverage to a published score of 9.4. How this is calculated

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply. Full methodology.

#4

Licensed Peptides Wholesale

Best for Laboratories, distributors, and brands

  • Third-party testing & COAs
  • Wholesale program
  • Private label
  • United States (US) fulfillment
9.3/10Peptide Ad Lab Score
78% evidence coverage Visit Supplier View Full Profile
See how we scored them

Overview

The company operates as a B2B chemical supplier offering bulk research peptides, volume pricing tiers, and custom labeling services. The site states that the offerings are aimed at established research laboratories, academic institutions, white-label brands, and wholesale distributors. Published materials on the platform include product catalogs, tiered volume pricing, labeling options, and testing report libraries.

The company states that every lot undergoes third-party HPLC purity analysis, mass spectrometry, and endotoxin screening by ISO/IEC 17025 accredited laboratories. According to the site, purchasing workflows involve wholesale account applications, volume-based tiering, and same-day US fulfillment for in-stock items. Buyers would still need to inquire about specific pricing quotes for enterprise-tier volumes, custom formulations, or unlisted catalog items.

Pros
  • Certificate of Analysis provided for every lot
  • Independent third-party testing by ISO/IEC 17025 accredited laboratories
  • Flexible labeling options including non-branded and white-label custom packaging
  • Same-day US fulfillment on in-stock items
Considerations
  • Wholesale account application and approval required before ordering
  • Minimum order requirement of 100 units
  • Custom white-label orders require quote requests and setup terms
LocationBoca Raton, Florida, USA
Business typeWholesale distributor
In-house manufacturingNot confirmed
ShippingUnited States (US)
Minimum order100 units

Score breakdown weighted for this category

Testing & Documentation 25%
10.0
Business Transparency 20%
10.0
Wholesale Capabilities 25%
10.0
Manufacturing Capabilities 10%
Not assessed
Commercial Purchasing 10%
10.0
Fulfillment & Logistics 7%
Not assessed
Website / Buyer Experience 3%
7.8

Rubric score 9.9 across the 78% of the rubric verified so far, adjusted for evidence coverage to a published score of 9.3. How this is calculated

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply. Full methodology.

#5

Bench Grade Peptides

Best for Research laboratories and brands

  • Third-party testing & COAs
  • Wholesale program
  • Private label
  • In-house manufacturing
9.2/10Peptide Ad Lab Score
79% evidence coverage Visit Supplier View Full Profile
See how we scored them

Overview

The site states that the company operates as a US-based manufacturer and supplier of research peptides aimed at laboratories, clinics, and commercial brands. According to the company, synthesis takes place in an ISO-7 certified cleanroom facility utilizing domestic and international API. The site publishes standard catalog listings, self-serve bulk pricing tiers, and wholesale program structures.

The company states that every lot undergoes independent analysis with Certificates of Analysis available for verification. Purchasing workflows include single-unit online checkout as well as application-based wholesale accounts with custom pricing and fulfillment options. Buyers must request specific wholesale price sheets and account terms directly, as exact trade pricing is not publicly listed beyond standard bulk tiers.

Pros
  • US-based ISO-7 certified cleanroom manufacturing facility
  • Independent third-party lot testing with accessible Certificates of Analysis
  • Self-serve published bulk pricing tiers starting at 25 vials
  • White-label, blind dropshipping, and domestic fulfillment services
Considerations
  • Wholesale and custom trade pricing is not publicly listed and requires an application
  • Opening order minimums for wholesale and white-label accounts are determined individually per account
  • Products are strictly restricted to laboratory research use and prohibited from human or veterinary application
Location8 The Green, Dover, DE 19901, USA
Business typeManufacturer
In-house manufacturingYes
ShippingUnited States
Minimum orderNo minimum for catalog orders; wholesale opening orders are set per account

Score breakdown weighted for this category

Testing & Documentation 25%
10.0
Business Transparency 20%
10.0
Wholesale Capabilities 25%
10.0
Manufacturing Capabilities 10%
Not assessed
Commercial Purchasing 10%
8.6
Fulfillment & Logistics 7%
8.8
Website / Buyer Experience 3%
10.0

Rubric score 9.8 across the 79% of the rubric verified so far, adjusted for evidence coverage to a published score of 9.2. How this is calculated

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply. Full methodology.

#6

Peptide Technologies

Best for Wholesale research peptide buyers

  • Third-party testing & COAs
  • Wholesale program
  • Private label
  • Custom synthesis
9.2/10Peptide Ad Lab Score
73% evidence coverage Visit Supplier View Full Profile
See how we scored them

Overview

The company operates as a US-based peptide manufacturer supplying bulk research peptides, custom synthesis, and white-label services exclusively to verified businesses. The site states that all offerings are aimed at qualified commercial buyers through a wholesale-only program requiring business verification. Additionally, the company publishes catalog listings, lot-level certificates of analysis, pricing tiers, and educational resources directly on its platform.

According to the supplier, every released lot undergoes a six-test analytical panel at an independent ISO 17025-accredited third-party laboratory, with results accessible via vial QR codes. The purchasing workflow involves business verification via Didit, an AI order assistant, invoicing on net terms, and cold-chain fulfillment on dry ice. However, buyers would still need to inquire about specific delivery schedules and shipping regions, as the site notes order shipments can take up to 60 or 180 days.

Pros
  • Independent release testing performed at an ISO 17025-accredited third-party laboratory
  • Lot-level certificates of analysis accessible via QR codes on every vial
  • GMP-aligned manufacturing facility located in the United States
  • Wholesale volume tiers and net payment terms available for verified businesses
Considerations
  • Name of the independent ISO 17025 testing laboratory is unstated
  • Extended fulfillment windows of up to 60 to 180 days stated in terms
  • Wholesale-only model requires mandatory business verification prior to purchase
  • Retail sales have ended permanently, redirecting retail inquiries to a partner brand
LocationUnited States
Business typeManufacturer
In-house manufacturingYes
ShippingNot stated
Minimum order100 mg

Score breakdown weighted for this category

Testing & Documentation 25%
10.0
Business Transparency 20%
Not assessed
Wholesale Capabilities 25%
10.0
Manufacturing Capabilities 10%
10.0
Commercial Purchasing 10%
10.0
Fulfillment & Logistics 7%
10.0
Website / Buyer Experience 3%
Not assessed

Rubric score 10.0 across the 73% of the rubric verified so far, adjusted for evidence coverage to a published score of 9.2. How this is calculated

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply. Full methodology.

#7

PeptideTech

Best for Wholesale and private-label buyers

  • Third-party testing & COAs
  • Wholesale program
  • Private label
  • Custom synthesis
9.1/10Peptide Ad Lab Score
71% evidence coverage Visit Supplier View Full Profile
See how we scored them

Overview

The site states that Peptide Technologies operates as a US-based manufacturer supplying research peptides exclusively to verified businesses at a wholesale level. The company offers catalog stock, custom synthesis up to 60 residues, and private-label manufacturing services. Published materials include a public certificate of analysis library keyed to individual vial QR codes and pricing tiers based on order volume.

According to the company, every lot clears a six-test analytical panel at an independent ISO 17025-accredited laboratory before release, with documentation accessible via vial QR codes. The purchasing workflow requires business verification through Didit, after which orders are managed via a portal supporting net terms and ACH or wire payments. The site notes that order fulfillment can take up to 180 days, and buyers would still need to inquire about specific delivery timelines, exact compound availability, and international shipping capabilities.

Pros
  • Independent ISO 17025 third-party release testing conducted for every lot.
  • Lot-level certificates of analysis published and accessible via vial QR codes.
  • Tiered wholesale pricing and net payment terms available for verified businesses.
Considerations
  • Delivery windows can take up to 180 days from order confirmation.
  • Mandatory business verification is required prior to purchasing.
  • Retail sales have ended permanently, restricting purchases to verified business accounts.
LocationUnited States
Business typeManufacturer
In-house manufacturingYes
ShippingNot stated
Minimum order100 mg (wholesale Tier 1) or 10-vial packs

Score breakdown weighted for this category

Testing & Documentation 25%
10.0
Business Transparency 20%
Not assessed
Wholesale Capabilities 25%
10.0
Manufacturing Capabilities 10%
10.0
Commercial Purchasing 10%
10.0
Fulfillment & Logistics 7%
Not assessed
Website / Buyer Experience 3%
10.0

Rubric score 10.0 across the 71% of the rubric verified so far, adjusted for evidence coverage to a published score of 9.1. How this is calculated

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply. Full methodology.

#8

Quality Peptide USA

Best for Laboratories and research groups

  • Third-party testing & COAs
  • Wholesale program
  • Private label
  • Domestic US (excluding New York, Massachusetts, and Connecticut)
9.1/10Peptide Ad Lab Score
69% evidence coverage Visit Supplier View Full Profile
See how we scored them

Overview

The company operates as a research chemical supplier offering individual peptides, multi-peptide blends, and lab supplies intended strictly for in-vitro laboratory and research applications. According to the site, the catalog targets licensed professionals, research groups, laboratories, and resellers through both retail purchasing and tiered wholesale programs. The platform publishes a product catalog spanning categories such as metabolic, growth hormone, and tissue repair research, alongside a public library of certificates of analysis.

The site states that every batch undergoes third-party HPLC and mass spectrometry testing, with batch-specific certificates of analysis available on product pages and included with orders. Purchasing is conducted via standard online checkout or wholesale quote requests, with the company offering same-day shipping for orders placed before 2 PM EST using domestic US fulfillment. However, buyers would still need to inquire directly regarding specific custom synthesis capabilities, exact testing laboratory names, and regional compliance details beyond the stated restricted jurisdictions.

Pros
  • Publicly accessible batch-specific certificates of analysis for all products.
  • Same-day shipping for orders placed before 2 PM EST.
  • Tiered wholesale pricing programs with volume discounts for bulk buyers.
  • Domestic US synthesis and fulfillment facilities.
Considerations
  • Specific third-party testing laboratory names are unstated on the site.
  • Shipping is restricted in certain jurisdictions and unavailable to New York, Massachusetts, and Connecticut.
  • Products are restricted strictly to in-vitro laboratory research use with no human or therapeutic applications authorized.
LocationUnited States
Business typeResearch supplier
In-house manufacturingNot confirmed
ShippingDomestic US (excluding New York, Massachusetts, and Connecticut)
Minimum orderWholesale orders start at $2,500; standard retail order minimum is unstated.

Score breakdown weighted for this category

Testing & Documentation 25%
10.0
Business Transparency 20%
Not assessed
Wholesale Capabilities 25%
10.0
Manufacturing Capabilities 10%
Not assessed
Commercial Purchasing 10%
10.0
Fulfillment & Logistics 7%
10.0
Website / Buyer Experience 3%
10.0

Rubric score 10.0 across the 69% of the rubric verified so far, adjusted for evidence coverage to a published score of 9.1. How this is calculated

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply. Full methodology.

#9

Wholesale Peptide Supply

Best for Bulk kit buyers and distributors

  • Third-party testing & COAs
  • Wholesale program
  • Private label
  • Domestic, overnight available
9.0/10Peptide Ad Lab Score
75% evidence coverage Visit Supplier View Full Profile
See how we scored them

Overview

The company operates as a B2B chemical reagent supplier targeting research buyers, distributors, and med spas with bulk catalog offerings and white-label services. The site states that it provides over 50 catalog compounds across multiple categories, alongside custom production and private-label packaging options. Additionally, the platform publishes compound guides and procurement information for prospective business clients.

The site states that every production run undergoes independent third-party HPLC/MS testing, with per-lot certificates of analysis available as paid add-ons. Orders require a minimum of 100 vials (mix and match in kits of 10), and purchases are invoiced offline via wire, ACH, Zelle, or credit card after quote submission. Fulfillment is handled from a Costa Mesa, California facility with domestic shipping and overnight options available. Buyers would still need to inquire directly about exact per-compound pricing structures and custom volume lead times.

Pros
  • Third-party HPLC/MS testing conducted on every production batch.
  • In-house white-label design, printing, and application services.
  • US-based fulfillment with lot-tracked warehousing and domestic shipping.
Considerations
  • Public per-vial pricing requires a requested quote rather than instant web checkout.
  • Certificates of analysis are offered as a paid add-on rather than standard inclusion.
  • The specific name of the contract analytical testing laboratory is unstated on the site.
LocationCosta Mesa, California, USA
Business typeWholesale distributor
In-house manufacturingNo
ShippingDomestic, overnight available
Minimum order100 vials, mix & match

Score breakdown weighted for this category

Testing & Documentation 25%
10.0
Business Transparency 20%
10.0
Wholesale Capabilities 25%
10.0
Manufacturing Capabilities 10%
7.0
Commercial Purchasing 10%
10.0
Fulfillment & Logistics 7%
10.0
Website / Buyer Experience 3%
8.5

Rubric score 9.7 across the 75% of the rubric verified so far, adjusted for evidence coverage to a published score of 9.0. How this is calculated

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply. Full methodology.

#10

Sparta Labs

Best for Laboratories and research organizations

  • Third-party testing & COAs
  • Wholesale program
  • United States only fulfillment
9.0/10Peptide Ad Lab Score
69% evidence coverage Visit Supplier View Full Profile
See how we scored them

Overview

Sparta Labs operates as a chemical supplier offering research-grade peptides, lyophilized compounds, and related blends. The company directs its catalog toward laboratories, research organizations, academic institutions, and resellers engaged in in-vitro and non-clinical research. The site publishes retail pricing, wholesale application forms, educational resources, and batch-specific Certificates of Analysis (COAs).

The company states that every batch undergoes independent third-party HPLC testing, with purity levels reported at 99% or greater and documented via verifiable COAs. Purchasing is handled through standard online payment methods or via a wholesale application process requiring an End-User Declaration. Orders are dispatched via FedEx or USPS using cold-chain packaging within 24 hours, restricted exclusively to destinations within the United States. Buyers would still need to inquire to obtain specific wholesale price lists or the identities of the third-party testing laboratories.

Pros
  • Batch-specific third-party HPLC testing for every lot
  • Publicly accessible Certificates of Analysis (COAs)
  • Cold-chain dispatch within 24 hours
Considerations
  • Specific testing laboratory names unstated
  • Wholesale price lists not publicly disclosed without application
  • Shipping restricted to the United States
Location1501 Belle Isle Ave Suite 110, Mount Pleasant, SC 29464
Business typeResearch supplier
In-house manufacturingNo
ShippingUnited States only
Minimum orderNot stated

Score breakdown weighted for this category

Testing & Documentation 25%
10.0
Business Transparency 20%
10.0
Wholesale Capabilities 25%
10.0
Manufacturing Capabilities 10%
Not assessed
Commercial Purchasing 10%
10.0
Fulfillment & Logistics 7%
8.7
Website / Buyer Experience 3%
10.0

Rubric score 9.9 across the 69% of the rubric verified so far, adjusted for evidence coverage to a published score of 9.0. How this is calculated

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply. Full methodology.

#11

Wholesale Research Peptides

Best for Research laboratories and institutions

  • Third-party testing & COAs
  • Wholesale program
  • Custom synthesis
  • Worldwide fulfillment
9.0/10Peptide Ad Lab Score
68% evidence coverage Visit Supplier View Full Profile
See how we scored them

Overview

The site states that Wholesale Research Peptides operates as a wholesale supplier providing lab-grade research materials exclusively to qualified laboratories, universities, and contract research organisations. The company publishes a product catalogue along with a public purity database containing third-party HPLC and mass spectrometry reports for released lots. According to the platform, all materials are intended strictly for in-vitro laboratory research rather than human or veterinary use.

The company states that orders are processed through a quote-and-invoice workflow using bank transfer or PayID, with no credit card payments accepted. Dispatched orders include batch-matched certificates of analysis, and the company maintains cold storage at −20 °C prior to worldwide shipping. Buyers must contact the supplier directly to determine specific compound pricing, item-specific minimum order quantities, and jurisdictional import requirements.

Pros
  • Every batch undergoes third-party HPLC and mass spectrometry testing with verifiable report keys.
  • Batch-matched certificates of analysis are provided with every order.
  • The supplier maintains temperature-controlled storage (−20 °C) and offers tracked worldwide shipping.
Considerations
  • Pricing and availability are not publicly listed and require direct enquiry.
  • Online checkout is unavailable, requiring a quote-and-invoice workflow via bank transfer or PayID.
  • Item-specific minimum order quantities are not published upfront.
LocationQueensland, Australia
Business typeResearch supplier
In-house manufacturingNo
ShippingWorldwide
Minimum orderNot stated

Score breakdown weighted for this category

Testing & Documentation 25%
10.0
Business Transparency 20%
10.0
Wholesale Capabilities 25%
10.0
Manufacturing Capabilities 10%
Not assessed
Commercial Purchasing 10%
10.0
Fulfillment & Logistics 7%
10.0
Website / Buyer Experience 3%
10.0

Rubric score 10.0 across the 68% of the rubric verified so far, adjusted for evidence coverage to a published score of 9.0. How this is calculated

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply. Full methodology.

#12

QSC Supply

Best for Laboratories and research institutions

  • Third-party testing & COAs
  • Wholesale program
  • In-house manufacturing
  • Domestic warehouses in USA, EU, UK, Canada, Australia, Singapore, Thailand, and Vietnam, with shipping from the Qingdao manufacturing facility for uncovered regions
9.0/10Peptide Ad Lab Score
66% evidence coverage Visit Supplier View Full Profile
See how we scored them

Overview

The site states that QSC Supply is the B2B and wholesale information resource for Qingdao Sigma Chemical (QSC), a direct manufacturer of research peptides and raw powders. The supplier's offerings are aimed at research institutions, laboratories, and procurement agents. The site publishes a catalogue of over 75 SKUs across six primary compound categories, alongside purity standards of ≥99% HPLC and ESI-MS identity confirmation.

According to the site, all production batches include an independent Janoshik Certificate of Analysis, and standard orders are placed via qsc-usa.com using Bitcoin or USDT with no minimum order quantity. Fulfillment is handled through domestic warehouses in eight global regions (USA, EU, UK, Canada, Australia, Singapore, Thailand, and Vietnam), with custom volume discussions available through direct contact. Buyers would still need to inquire about public wholesale pricing tiers, exact lead times for non-standard volumes, and terms for distribution agreements.

Pros
  • Direct manufacturer sourcing from Qingdao Sigma Chemical
  • Independent Janoshik Certificates of Analysis provided for every batch
  • Domestic fulfillment across eight global regions
  • No minimum order quantity for standard catalogue purchases
Considerations
  • Public pricing is unstated for volume and wholesale orders
  • Accepted payment methods are limited to cryptocurrencies (Bitcoin and USDT)
  • Specific lead times for custom or non-standard volume orders are unstated
LocationQingdao, Shandong Province, China
Business typeManufacturer
In-house manufacturingYes
ShippingDomestic warehouses in USA, EU, UK, Canada, Australia, Singapore, Thailand, and Vietnam, with shipping from the Qingdao manufacturing facility for uncovered regions
Minimum orderNo minimum order quantity for standard catalogue items

Score breakdown weighted for this category

Testing & Documentation 25%
10.0
Business Transparency 20%
Not assessed
Wholesale Capabilities 25%
10.0
Manufacturing Capabilities 10%
10.0
Commercial Purchasing 10%
Not assessed
Fulfillment & Logistics 7%
Not assessed
Website / Buyer Experience 3%
Not assessed

Rubric score 10.0 across the 66% of the rubric verified so far, adjusted for evidence coverage to a published score of 9.0. How this is calculated

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply. Full methodology.

#13

Peptide Wholesalers

Best for Wholesale resellers and institutions

  • Third-party testing & COAs
  • Wholesale program
  • United States (special destinations quoted individually)
8.9/10Peptide Ad Lab Score
73% evidence coverage Visit Supplier View Full Profile
See how we scored them

Overview

The company operates as a wholesale supplier aimed at resellers and research institutions. The site states that it provides US-sourced and warehoused research compounds with published pricing per vial. Furthermore, the catalog outlines volume tiers alongside upcoming white-label and custom order services.

The company states that every production batch undergoes independent six-panel testing by Kovera Labs, backed by searchable Certificates of Analysis. The purchasing workflow involves submitting orders for written confirmation and invoicing rather than immediate checkout. Buyers must inquire directly for exact white-label launch timelines, custom pricing, and terms.

Pros
  • Independent six-panel batch testing conducted by Kovera Labs
  • Searchable Certificate of Analysis available for every production batch
  • Same-day shipping via UPS from Costa Mesa, California
Considerations
  • Products are restricted to research use only and not for human consumption
  • White-label and private-label services are currently in a coming-soon status
  • No direct online checkout or immediate payment processing available
LocationCosta Mesa, California, USA
Business typeWholesale distributor
In-house manufacturingNo
ShippingUnited States (special destinations quoted individually)
Minimum order50 vials (mixed in 10-vial kits)

Score breakdown weighted for this category

Testing & Documentation 25%
10.0
Business Transparency 20%
10.0
Wholesale Capabilities 25%
8.8
Manufacturing Capabilities 10%
Not assessed
Commercial Purchasing 10%
Not assessed
Fulfillment & Logistics 7%
10.0
Website / Buyer Experience 3%
10.0

Rubric score 9.6 across the 73% of the rubric verified so far, adjusted for evidence coverage to a published score of 8.9. How this is calculated

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply. Full methodology.

#14

Lone Star Peptide Co.

Best for Wholesale buyers and laboratories

  • Third-party testing & COAs
  • Wholesale program
  • Texas and beyond fulfillment
8.9/10Peptide Ad Lab Score
65% evidence coverage Visit Supplier View Full Profile
See how we scored them

Overview

The company operates as a Houston-based supplier of research peptides, targeting both individual researchers and wholesale buyers including clinics, resellers, and research organizations. The site states that it offers research compounds categorized by application areas. Additionally, the company maintains a public COA library for batch tracking.

The site states that every batch includes third-party testing documentation covering HPLC purity, mass spectrometry, and endotoxin levels, alongside measured milligram content on vial labels. Purchasing is conducted via invoice-based ordering or through an application-gated wholesale portal, with orders confirmed before 3 PM CST shipping the same day from Houston. Buyers would still need to inquire directly regarding specific minimum order quantities and customized wholesale pricing.

Pros
  • Batch-specific third-party testing documentation covering HPLC, mass spectrometry, and endotoxin panels included with orders.
  • Publicly searchable COA library indexed by unique batch ID.
  • Same-day shipping from Houston for orders confirmed before 3 PM CST.
Considerations
  • Minimum order quantities are not publicly stated.
  • Wholesale access requires completion of a vetting application.
  • Pricing for wholesale orders is quoted individually per account rather than published publicly.
LocationHouston, Texas, USA
Business typeResearch supplier
In-house manufacturingNo
ShippingTexas and beyond
Minimum orderNot stated

Score breakdown weighted for this category

Testing & Documentation 25%
10.0
Business Transparency 20%
10.0
Wholesale Capabilities 25%
10.0
Manufacturing Capabilities 10%
Not assessed
Commercial Purchasing 10%
10.0
Fulfillment & Logistics 7%
10.0
Website / Buyer Experience 3%
10.0

Rubric score 10.0 across the 65% of the rubric verified so far, adjusted for evidence coverage to a published score of 8.9. How this is calculated

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply. Full methodology.

#15

LIANTAO Peptide

Best for Laboratories, brands, and distributors

  • Third-party testing & COAs
  • Wholesale program
  • Private label
  • Custom synthesis
8.8/10Peptide Ad Lab Score
62% evidence coverage Visit Supplier View Full Profile
See how we scored them

Overview

LIANTAO Peptide operates as a peptide manufacturer founded in 2014, offering custom synthesis and catalog products produced via solid-phase peptide synthesis. The company targets brands, laboratories, formulators, and distributors across more than 40 countries. Its website publishes product catalogs spanning cosmetic, research, and nutritional peptides, alongside company history, regulatory compliance information, and blog articles on peptide analysis.

Every shipment includes documentation such as Certificates of Analysis (COAs), Material Safety Data Sheets (MSDS), and HPLC/mass spectrometry data upon request. The site lacks an online checkout system, requiring buyers to submit inquiries for personalized quotations, samples, lead times, and variable minimum order quantities. Orders are shipped internationally from China using express couriers with temperature-controlled packaging, while buyers remain responsible for local import duties and permits.

Pros
  • Offers full technical documentation including COAs, MSDS, and HPLC/mass spectrometry data.
  • Maintains a catalog of over 500 peptide products with custom synthesis capabilities from milligram to kilogram scale.
  • Provides sample availability and batch traceability for quality evaluation.
Considerations
  • No public pricing or online checkout available on the website.
  • Minimum order quantities vary by product and require direct inquiry.
  • Import duties, local taxes, and clearance fees are the responsibility of the buyer.
LocationChina
Business typeManufacturer
In-house manufacturingYes
ShippingWorldwide (shipped from China to over 40 countries, including Asia, Europe, North America, Middle East, Latin America, Africa, and Oceania).
Minimum orderVaries by product, ranging from grams for specialty peptides to kilograms for bulk ingredients.

Score breakdown weighted for this category

Testing & Documentation 25%
10.0
Business Transparency 20%
Not assessed
Wholesale Capabilities 25%
10.0
Manufacturing Capabilities 10%
10.0
Commercial Purchasing 10%
Not assessed
Fulfillment & Logistics 7%
10.0
Website / Buyer Experience 3%
Not assessed

Rubric score 10.0 across the 62% of the rubric verified so far, adjusted for evidence coverage to a published score of 8.8. How this is calculated

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply. Full methodology.

Position #1 is a labelled sponsored placement; its score is calculated with the same methodology as every other supplier. Only suppliers with enough independently verified evidence are given a rank. Each score shows the share of the scoring rubric we were able to verify, and suppliers below that bar are listed further down, unranked.

Side-by-side comparison

Position #1 is a sponsored placement. All other positions are ordered by Peptide Ad Lab score.

SupplierBest ForLocationCOAs / TestingWholesalePrivate LabelCustom Synthesis ScoreVisit
1Amino WholesaleSponsored placement Wholesale research buyers312 W. 2nd St #1423, Casper, WY 82601, United States✓✓✓? 9.0 Visit
2Koi Research Labs LLC Laboratories and research institutionsSheridan, Wyoming, USA✓✓✓✓ 9.6 Visit
3Kylo Peptides Research laboratories and volume buyersSheridan, Wyoming, USA✓✓✓✓ 9.4 Visit
4Licensed Peptides Wholesale Laboratories, distributors, and brandsBoca Raton, Florida, USA✓✓✓? 9.3 Visit
5Bench Grade Peptides Research laboratories and brands8 The Green, Dover, DE 19901, USA✓✓✓? 9.2 Visit
6Peptide Technologies Wholesale research peptide buyersUnited States✓✓✓✓ 9.2 Visit
7PeptideTech Wholesale and private-label buyersUnited States✓✓✓✓ 9.1 Visit
8Quality Peptide USA Laboratories and research groupsUnited States✓✓✓? 9.1 Visit
9Wholesale Peptide Supply Bulk kit buyers and distributorsCosta Mesa, California, USA✓✓✓? 9.0 Visit
10Sparta Labs Laboratories and research organizations1501 Belle Isle Ave Suite 110, Mount Pleasant, SC 29464✓✓?? 9.0 Visit
11Wholesale Research Peptides Research laboratories and institutionsQueensland, Australia✓✓?✓ 9.0 Visit
12QSC Supply Laboratories and research institutionsQingdao, Shandong Province, China✓✓?? 9.0 Visit
13Peptide Wholesalers Wholesale resellers and institutionsCosta Mesa, California, USA✓✓—— 8.9 Visit
14Lone Star Peptide Co. Wholesale buyers and laboratoriesHouston, Texas, USA✓✓?? 8.9 Visit
15LIANTAO Peptide Laboratories, brands, and distributorsChina✓✓✓✓ 8.8 Visit
1
Amino WholesaleSponsored placementWholesale research buyers
9.0/10
  • Third-party testing & COAs
  • Wholesale program
  • Private label
Visit Supplier Details
2
Koi Research Labs LLCLaboratories and research institutions
9.6/10
  • Third-party testing & COAs
  • Wholesale program
  • Private label
Visit Supplier Details
3
Kylo PeptidesResearch laboratories and volume buyers
9.4/10
  • Third-party testing & COAs
  • Wholesale program
  • Private label
Visit Supplier Details
4
Licensed Peptides WholesaleLaboratories, distributors, and brands
9.3/10
  • Third-party testing & COAs
  • Wholesale program
  • Private label
Visit Supplier Details
5
Bench Grade PeptidesResearch laboratories and brands
9.2/10
  • Third-party testing & COAs
  • Wholesale program
  • Private label
Visit Supplier Details
6
Peptide TechnologiesWholesale research peptide buyers
9.2/10
  • Third-party testing & COAs
  • Wholesale program
  • Private label
Visit Supplier Details
7
PeptideTechWholesale and private-label buyers
9.1/10
  • Third-party testing & COAs
  • Wholesale program
  • Private label
Visit Supplier Details
8
Quality Peptide USALaboratories and research groups
9.1/10
  • Third-party testing & COAs
  • Wholesale program
  • Private label
Visit Supplier Details
9
Wholesale Peptide SupplyBulk kit buyers and distributors
9.0/10
  • Third-party testing & COAs
  • Wholesale program
  • Private label
Visit Supplier Details
10
Sparta LabsLaboratories and research organizations
9.0/10
  • Third-party testing & COAs
  • Wholesale program
  • United States only fulfillment
Visit Supplier Details
11
Wholesale Research PeptidesResearch laboratories and institutions
9.0/10
  • Third-party testing & COAs
  • Wholesale program
  • Custom synthesis
Visit Supplier Details
12
QSC SupplyLaboratories and research institutions
9.0/10
  • Third-party testing & COAs
  • Wholesale program
  • In-house manufacturing
Visit Supplier Details
13
Peptide WholesalersWholesale resellers and institutions
8.9/10
  • Third-party testing & COAs
  • Wholesale program
  • United States (special destinations quoted individually)
Visit Supplier Details
14
Lone Star Peptide Co.Wholesale buyers and laboratories
8.9/10
  • Third-party testing & COAs
  • Wholesale program
  • Texas and beyond fulfillment
Visit Supplier Details
15
LIANTAO PeptideLaboratories, brands, and distributors
8.8/10
  • Third-party testing & COAs
  • Wholesale program
  • Private label
Visit Supplier Details

Not enough verified evidence to rank

These suppliers meet the category criteria but have not published — or have not yet supplied — enough verifiable information for us to score them against the rubric. They are listed here rather than ranked. We do not estimate the missing information, and we do not let a gap in the record lift a supplier above one that documented itself fully. Suppliers can submit documentation at any time, at no cost, and are re-scored when it is verified.

VS Peps

VS Peps supplies batch-tested, research-grade peptides with published third-party certificates of analysis.

Insufficient evidence 71% evidence coverage
  • Wholesale Capabilities 56% verified (needs 60%)
View what we verified

Peptide Xplorations

Peptide Xplorations manufactures bulk and wholesale research peptides for laboratories and businesses in the United States.

Insufficient evidence 66% evidence coverage
  • Testing & Documentation 50% verified (needs 60%)
View what we verified

99 Purity Wholesale

The company provides U.S.-manufactured research peptides and bulk kits for licensed professionals and institutions.

Rank on hold 65% evidence coverage
  • Numbered rank on hold pending an editorial review.
View what we verified

PX1 Research

PX1 Research supplies single-compound research peptides, multi-peptide blends, and bio regulators for laboratory use.

Insufficient evidence 63% evidence coverage
  • Wholesale Capabilities 56% verified (needs 60%)
View what we verified

Cenexa Labs

Cenexa Labs supplies research peptides, bioregulators, and lab supplies with lot-linked Certificates of Analysis.

Insufficient evidence 62% evidence coverage
  • Testing & Documentation 50% verified (needs 60%)
View what we verified

Peptidesr4u

The company supplies synthetic research peptides and custom synthesis services for scientific research.

Insufficient evidence 61% evidence coverage
  • Testing & Documentation 28% verified (needs 60%)
View what we verified

Accutide Research Supply

Accutide Research Supply provides third-party HPLC-tested research peptides and laboratory supplies shipped Canada-wide.

Insufficient evidence 60% evidence coverage
  • overall evidence coverage 60% (needs 60%)
  • Wholesale Capabilities 56% verified (needs 60%)
View what we verified

Peptide Direct

Peptide Direct supplies wholesale GMP-certified, HPLC-verified peptides to commercial buyers, clinics, and brands.

Insufficient evidence 59% evidence coverage
  • overall evidence coverage 59% (needs 60%)
  • Testing & Documentation 39% verified (needs 60%)
View what we verified

US Wholesale Peptides

The company offers wholesale peptides, bulk APIs, and fulfillment services exclusively to verified research and medical organizations.

Insufficient evidence 58% evidence coverage
  • overall evidence coverage 58% (needs 60%)
  • Testing & Documentation 50% verified (needs 60%)
View what we verified

Trusty Peptide

Trusty Peptide supplies research-grade lyophilized peptides tested for minimum 98 percent purity with certificates of analysis.

Insufficient evidence 58% evidence coverage
  • overall evidence coverage 58% (needs 60%)
  • Wholesale Capabilities 39% verified (needs 60%)
View what we verified

Wholesale Peptides Company

The company supplies 51 bulk research-grade peptides with tiered wholesale pricing and private-label options.

Insufficient evidence 57% evidence coverage
  • overall evidence coverage 57% (needs 60%)
  • Testing & Documentation 50% verified (needs 60%)
View what we verified

Atura Research

Atura Research supplies wholesale research peptides and custom synthesis services for U.S. laboratories and formulators.

Insufficient evidence 57% evidence coverage
  • overall evidence coverage 57% (needs 60%)
  • Testing & Documentation 50% verified (needs 60%)
View what we verified

Bulk RUO Peptides

Bulk RUO Peptides supplies research-use-only peptides in wholesale kits and bulk quantities to verified businesses.

Insufficient evidence 57% evidence coverage
  • overall evidence coverage 57% (needs 60%)
  • Testing & Documentation 50% verified (needs 60%)
View what we verified

Maple Research Labs

Maple Research Labs supplies research-grade peptides and laboratory reagents to Canadian scientific and academic buyers.

Insufficient evidence 56% evidence coverage
  • overall evidence coverage 56% (needs 60%)
  • Wholesale Capabilities 44% verified (needs 60%)
View what we verified

NobelPepLab

NobelPepLab supplies wholesale research peptides in boxes of ten vials with independent batch verification.

Insufficient evidence 56% evidence coverage
  • overall evidence coverage 56% (needs 60%)
  • Wholesale Capabilities 50% verified (needs 60%)
View what we verified

NeuroPept Ltd

NeuroPept supplies research peptides and custom synthesis services for laboratories and biotech companies worldwide.

Insufficient evidence 55% evidence coverage
  • overall evidence coverage 55% (needs 60%)
  • Wholesale Capabilities 33% verified (needs 60%)
View what we verified

CURRNT Peptides

CURRNT Peptides supplies research-grade compounds with batch testing documentation and wholesale programs for qualified buyers.

Insufficient evidence 54% evidence coverage
  • overall evidence coverage 54% (needs 60%)
  • Testing & Documentation 50% verified (needs 60%)
View what we verified

PRMX Supply

PRMX supplies peptides for laboratory research to qualified business and wholesale accounts.

Insufficient evidence 53% evidence coverage
  • overall evidence coverage 53% (needs 60%)
  • Testing & Documentation 39% verified (needs 60%)
View what we verified

Atlas BioLabs

Atlas BioLabs supplies wholesale and custom peptides sourced from manufacturing partners in China.

Insufficient evidence 51% evidence coverage
  • overall evidence coverage 51% (needs 60%)
  • Testing & Documentation 50% verified (needs 60%)
View what we verified

Epitagen

Epitagen supplies wholesale research peptides through coordinated manufacturing partners in China for qualified B2B buyers.

Insufficient evidence 50% evidence coverage
  • overall evidence coverage 50% (needs 60%)
  • Testing & Documentation 39% verified (needs 60%)
View what we verified

Bulk Peptides Company

The company supplies wholesale research-grade peptides in bulk kits with batch-specific certificates of analysis.

Insufficient evidence 50% evidence coverage
  • overall evidence coverage 50% (needs 60%)
  • Testing & Documentation 50% verified (needs 60%)
View what we verified

Stablize Peptides

Stablize Peptides offers research formats, bulk raw materials, and custom synthesis services for B2B procurement.

Insufficient evidence 50% evidence coverage
  • overall evidence coverage 50% (needs 60%)
  • Testing & Documentation 50% verified (needs 60%)
View what we verified

Hytan Peptides

Hytan Peptides supplies research-use peptide products, batch documentation, and private-label solutions to wholesale buyers.

Insufficient evidence 50% evidence coverage
  • overall evidence coverage 50% (needs 60%)
View what we verified

PeptideDistro

PeptideDistro.com supplies research-grade peptides, custom blends, and private-label programs exclusively to qualified wholesale buyers.

Insufficient evidence 49% evidence coverage
  • overall evidence coverage 49% (needs 60%)
  • Testing & Documentation 50% verified (needs 60%)
View what we verified

Genetra Research

Genetra supplies research-grade peptides and U.K.-made wellness formulations for laboratory and practitioner-guided use.

Insufficient evidence 49% evidence coverage
  • overall evidence coverage 49% (needs 60%)
  • Testing & Documentation 50% verified (needs 60%)
  • Wholesale Capabilities 39% verified (needs 60%)
View what we verified

Costides

Costides sells Research Use Only peptide 10-pack vials and kits for laboratory procurement from a US warehouse.

Insufficient evidence 48% evidence coverage
  • overall evidence coverage 48% (needs 60%)
  • Wholesale Capabilities 44% verified (needs 60%)
View what we verified

Bulktides

Bulktides supplies research-grade peptide kits in ten-vial bundles, alongside white-label and dropshipping services.

Insufficient evidence 48% evidence coverage
  • overall evidence coverage 48% (needs 60%)
  • Testing & Documentation 39% verified (needs 60%)
View what we verified

Peptides Bio

Peptides Bio supplies lyophilized peptide compounds for in-vitro laboratory research and academic study applications.

Insufficient evidence 48% evidence coverage
  • overall evidence coverage 48% (needs 60%)
  • Testing & Documentation 39% verified (needs 60%)
  • Wholesale Capabilities 33% verified (needs 60%)
View what we verified

Peptide Wholesalers (EU/US)

The company supplies wholesale research peptides with independent third-party HPLC testing and regional fulfillment hubs.

Insufficient evidence 48% evidence coverage
  • overall evidence coverage 48% (needs 60%)
  • Testing & Documentation 39% verified (needs 60%)
  • Wholesale Capabilities 56% verified (needs 60%)
View what we verified

Rejuvatide / Wholesale Research Peptides

RejuvaMED US provides research peptides and white-label options exclusively to licensed medical providers.

Insufficient evidence 45% evidence coverage
  • overall evidence coverage 45% (needs 60%)
  • Wholesale Capabilities 44% verified (needs 60%)
View what we verified

Allpointe Bio Research

Allpointe Bio Research supplies US-manufactured research peptides with lot-specific third-party analytical testing documentation.

Insufficient evidence 45% evidence coverage
  • overall evidence coverage 45% (needs 60%)
  • Testing & Documentation 50% verified (needs 60%)
  • Wholesale Capabilities 56% verified (needs 60%)
View what we verified

Aurchain Biotech

Aurchain Biotech supplies peptide raw materials, research peptides, cosmetic peptide ingredients, and custom synthesis services.

Insufficient evidence 45% evidence coverage
  • overall evidence coverage 45% (needs 60%)
  • Testing & Documentation 50% verified (needs 60%)
View what we verified

LyoPep

LyoPep supplies research-use peptides and coordinates wholesale or OEM project orders worldwide.

Insufficient evidence 44% evidence coverage
  • overall evidence coverage 44% (needs 60%)
  • Wholesale Capabilities 28% verified (needs 60%)
View what we verified

PepBoss

PepBoss provides white-label research peptide supply, wholesale catalog ordering, custom labeling, and fulfillment services for approved businesses.

Insufficient evidence 44% evidence coverage
  • overall evidence coverage 44% (needs 60%)
  • Testing & Documentation 50% verified (needs 60%)
  • Wholesale Capabilities 50% verified (needs 60%)
View what we verified

Coridion Sciences

Coridion Sciences supplies research peptides and delivery systems for B2B and B2C customers.

Insufficient evidence 41% evidence coverage
  • overall evidence coverage 41% (needs 60%)
  • Testing & Documentation 39% verified (needs 60%)
  • Wholesale Capabilities 50% verified (needs 60%)
View what we verified

LifeSpanSupply

LifeSpanSupply provides independently verified, high-purity research peptide chemical reagents globally to laboratories and institutions.

Insufficient evidence 40% evidence coverage
  • overall evidence coverage 40% (needs 60%)
  • Testing & Documentation 50% verified (needs 60%)
  • Wholesale Capabilities 11% verified (needs 60%)
View what we verified

Prime Science Peptides

Prime Science Peptides supplies lyophilized research peptides and laboratory materials with batch-specific Certificates of Analysis.

Insufficient evidence 39% evidence coverage
  • overall evidence coverage 39% (needs 60%)
  • Wholesale Capabilities 28% verified (needs 60%)
View what we verified

Reta Labs

Reta Labs supplies research-grade peptides and research stacks to Canadian laboratories and independent investigators.

Insufficient evidence 39% evidence coverage
  • overall evidence coverage 39% (needs 60%)
  • Testing & Documentation 39% verified (needs 60%)
View what we verified

Axion Biolabs

Axion Biolabs supplies research-use-only peptides and wholesale quantities for in-vitro laboratory research.

Insufficient evidence 39% evidence coverage
  • overall evidence coverage 39% (needs 60%)
  • Wholesale Capabilities 28% verified (needs 60%)
View what we verified

NovaChain Bio

NovaChain Bio supplies cosmetic peptides, research materials, and custom synthesis services for B2B buyers.

Insufficient evidence 37% evidence coverage
  • overall evidence coverage 37% (needs 60%)
View what we verified

SunGlobal Peptides

SunGlobal Peptides supplies wholesale research peptides to verified B2B distributors, compounding pharmacies, and research institutions.

Insufficient evidence 37% evidence coverage
  • overall evidence coverage 37% (needs 60%)
  • Testing & Documentation 28% verified (needs 60%)
View what we verified

Pen Peptide

The company supplies research peptides in dual-chamber pens across Europe via online ordering.

Insufficient evidence 36% evidence coverage
  • overall evidence coverage 36% (needs 60%)
  • Testing & Documentation 11% verified (needs 60%)
  • Wholesale Capabilities 50% verified (needs 60%)
View what we verified

Peptide 2.0 Inc.

Peptide 2.0 offers custom peptide synthesis, library generation, and high-throughput production services for researchers.

Insufficient evidence 36% evidence coverage
  • overall evidence coverage 36% (needs 60%)
  • Testing & Documentation 39% verified (needs 60%)
  • Wholesale Capabilities 50% verified (needs 60%)
View what we verified

Schafer-N ApS

Schafer-N provides custom peptide synthesis and high-density peptide microarray services for researchers.

Insufficient evidence 36% evidence coverage
  • overall evidence coverage 36% (needs 60%)
  • Testing & Documentation 28% verified (needs 60%)
  • Wholesale Capabilities 22% verified (needs 60%)
View what we verified

Peptivara Hong Kong Ltd.

Peptivara manufactures and supplies catalog and custom pharmaceutical-grade peptides for research and biotech applications globally.

Insufficient evidence 35% evidence coverage
  • overall evidence coverage 35% (needs 60%)
  • Testing & Documentation 39% verified (needs 60%)
  • Wholesale Capabilities 22% verified (needs 60%)
View what we verified

AurexonBio

AurexonBio supplies peptide raw materials, custom synthesis solutions, and OEM packaging for business buyers worldwide.

Insufficient evidence 35% evidence coverage
  • overall evidence coverage 35% (needs 60%)
  • Testing & Documentation 39% verified (needs 60%)
View what we verified

CASLO ApS

CASLO provides custom synthetic peptides and modification services utilizing Fmoc solid-phase synthesis for the research community.

Insufficient evidence 33% evidence coverage
  • overall evidence coverage 33% (needs 60%)
  • Testing & Documentation 28% verified (needs 60%)
  • Wholesale Capabilities 33% verified (needs 60%)
View what we verified

Amino Labs

Amino Labs supplies US-synthesized research peptides and topical serums for in vitro laboratory use.

Insufficient evidence 31% evidence coverage
  • overall evidence coverage 31% (needs 60%)
  • Testing & Documentation 11% verified (needs 60%)
  • Wholesale Capabilities 28% verified (needs 60%)
View what we verified

Peptides Depot

Peptides Depot supplies analytically characterized reference compounds exclusively to verified research institutions and laboratories.

Insufficient evidence 31% evidence coverage
  • overall evidence coverage 31% (needs 60%)
  • Testing & Documentation 50% verified (needs 60%)
  • Wholesale Capabilities 28% verified (needs 60%)
View what we verified

AAPPTec

AAPPTec provides peptide synthesis reagents, automated synthesizers, and custom peptide manufacturing services for research and industrial production.

Insufficient evidence 31% evidence coverage
  • overall evidence coverage 31% (needs 60%)
  • Testing & Documentation 11% verified (needs 60%)
  • Wholesale Capabilities 33% verified (needs 60%)
View what we verified

US2UPEP

The company provides bulk research peptides and custom OEM manufacturing with direct wholesale pricing and batch testing.

Insufficient evidence 30% evidence coverage
  • overall evidence coverage 30% (needs 60%)
  • Testing & Documentation 39% verified (needs 60%)
  • Wholesale Capabilities 39% verified (needs 60%)
View what we verified

Texas Peptides

The company supplies third-party tested research compounds and peptides strictly for laboratory use.

Insufficient evidence 27% evidence coverage
  • overall evidence coverage 27% (needs 60%)
  • Testing & Documentation 17% verified (needs 60%)
  • Wholesale Capabilities 44% verified (needs 60%)
View what we verified

Qube Peptides

Qube Peptides supplies research-grade peptides and laboratory supplies primarily to UK-based customers.

Insufficient evidence 27% evidence coverage
  • overall evidence coverage 27% (needs 60%)
  • Testing & Documentation 17% verified (needs 60%)
  • Wholesale Capabilities 39% verified (needs 60%)
View what we verified

DOU TAI

DOU TAI supplies research peptides, OEM coordination, and wholesale support services for qualified business partners.

Insufficient evidence 25% evidence coverage
  • overall evidence coverage 25% (needs 60%)
  • Testing & Documentation 22% verified (needs 60%)
View what we verified

Receptor Distribution

Receptor Distribution supplies bulk research peptides in 10-vial packs for in vitro laboratory applications.

Insufficient evidence 23% evidence coverage
  • overall evidence coverage 23% (needs 60%)
  • Testing & Documentation 17% verified (needs 60%)
  • Wholesale Capabilities 22% verified (needs 60%)
View what we verified

JPT Peptide Technologies

The company offers custom peptide synthesis, peptide libraries, peptide pools, arrays, and related bioassay services.

Insufficient evidence 9% evidence coverage
  • overall evidence coverage 9% (needs 60%)
  • Testing & Documentation 0% verified (needs 60%)
  • Wholesale Capabilities 22% verified (needs 60%)
View what we verified

Methodology

How Peptide Ad Lab Evaluates Suppliers

Every supplier is scored on the same seven dimensions, and the overall score is calculated from those dimensions — it is never assigned by hand. Where a supplier has not published something, we record it as not confirmed: an information gap is excluded from the calculation rather than scored as a zero, and we never infer a capability a company has not stated.

Scoring weights on this page

Testing & Documentation
25%
Business Transparency
20%
Wholesale Capabilities
25%
Manufacturing Capabilities
10%
Commercial Purchasing
10%
Fulfillment & Logistics
7%
Website / Buyer Experience
3%

This is a B2B wholesale ranking, so testing, transparency, wholesale capability and commercial purchasing infrastructure carry most of the weight. Website and buyer experience is deliberately given little influence here: how polished a site is matters far less to a bulk buyer than what the supplier can actually document and supply.

What we look at

Business transparencyCompany information, contact routes and operating detail that a commercial buyer can verify.
Testing / COA availabilityWhether certificates of analysis are published, provided on request, and tied to specific lots.
Wholesale capabilitiesExistence and clarity of a wholesale or bulk program, pricing tiers and account approval.
Manufacturing capabilitiesIn-house synthesis versus distribution, and what is documented about production.
Custom synthesisWhether made-to-order sequences are offered, and what the quoting process looks like.
Private-label availabilityPackaging and labelling programs, and the documented onboarding process.
Geographic fulfillmentWhere the supplier ships from and to, and any stated regional restrictions.
Website / business qualityClarity, completeness and consistency of published commercial information.
Jurisdictions and registrationWhether the supplier states where it operates or ships, and whether its business registration can be verified in a public registry.
Commercial purchasing optionsQuotes, purchase orders, account creation and repeat-order support for business buyers.
View Our Ranking Methodology

Buyer Guide

What to know before you buy

What is a wholesale peptide supplier?

A wholesale peptide supplier sells research peptides in bulk quantities to businesses rather than in single units to individuals. Wholesale programs typically involve tiered pricing by volume, minimum order requirements, an application or account-approval step, and documentation such as certificates of analysis for each batch.

What should laboratories look for in a peptide supplier?

Common evaluation criteria include batch-level certificates of analysis from an independent laboratory, clearly stated purity testing methods, transparent business information and a verifiable address, documented storage and shipping conditions, consistent lot availability, and a commercial purchasing process that supports purchase orders, quotes and repeat ordering.

Do wholesale peptide suppliers provide COAs?

Many do, and batch-level certificates of analysis are a standard expectation for commercial and laboratory buyers. Practice varies: some suppliers publish COAs for every lot, some provide them on request, and some publish only representative documents. Confirm whether the COA is tied to the specific lot being shipped and which laboratory produced it.

What is private-label peptide manufacturing?

Private label means a manufacturer produces and packages product under another company's brand. For peptides this usually covers labelling, packaging formats, and the documentation package that ships with the product. Minimum order quantities, lead times and label-compliance responsibility vary significantly between suppliers.

What is custom peptide synthesis?

Custom synthesis is the production of a specific peptide sequence to order, rather than from a catalogue. Buyers typically supply the sequence and required purity, and the supplier quotes on scale, purity grade, modifications and lead time. Analytical documentation such as HPLC and mass spectrometry data is normally part of the deliverable.

Frequently Asked Questions

What is a wholesale peptide supplier?

A wholesale peptide supplier sells research peptides in bulk quantities to businesses rather than in single units to individuals. Wholesale programs typically involve tiered pricing by volume, minimum order requirements, an application or account-approval step, and documentation such as certificates of analysis for each batch.

What should laboratories look for in a peptide supplier?

Common evaluation criteria include batch-level certificates of analysis from an independent laboratory, clearly stated purity testing methods, transparent business information and a verifiable address, documented storage and shipping conditions, consistent lot availability, and a commercial purchasing process that supports purchase orders, quotes and repeat ordering.

Do wholesale peptide suppliers provide COAs?

Many do, and batch-level certificates of analysis are a standard expectation for commercial and laboratory buyers. Practice varies: some suppliers publish COAs for every lot, some provide them on request, and some publish only representative documents. Confirm whether the COA is tied to the specific lot being shipped and which laboratory produced it.

What is private-label peptide manufacturing?

Private label means a manufacturer produces and packages product under another company's brand. For peptides this usually covers labelling, packaging formats, and the documentation package that ships with the product. Minimum order quantities, lead times and label-compliance responsibility vary significantly between suppliers.

What is custom peptide synthesis?

Custom synthesis is the production of a specific peptide sequence to order, rather than from a catalogue. Buyers typically supply the sequence and required purity, and the supplier quotes on scale, purity grade, modifications and lead time. Analytical documentation such as HPLC and mass spectrometry data is normally part of the deliverable.

How does Peptide Ad Lab evaluate suppliers?

Each supplier is assessed against a published set of criteria covering business transparency, testing and documentation, wholesale capabilities, manufacturing capabilities, website experience, commercial purchasing and fulfillment. Assessments use publicly available information: the company's own website, published documentation, and publicly stated programs. Where something cannot be confirmed, it is shown as not confirmed rather than counted against the supplier.

Can suppliers pay to be included?

Suppliers can purchase sponsored visibility, such as a featured placement on a comparison page or a sponsored position on a comparison page. Those placements are always clearly labelled as sponsored. Payment does not create, change or influence a Peptide Ad Lab editorial score. Where a comparison page includes a sponsored position, it carries a visible "Sponsored placement" label, and every other position on the page follows editorial score order.

More Supplier Categories

Additional comparison categories are being built on the same framework.

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