Company Overview
Costides describes itself as a wholesale storefront for Research Use Only peptides, based in Baltimore, MD. Every listing is a pack of ten lyophilized vials of one compound at one strength under its own SKU, and a single pack is the minimum order. There is no separate account, application or quote process: volume pricing applies automatically in the cart (5% off at 3 to 4 packs, 10% at 5 to 9, 15% at 10 or more, mixed compounds counting together).
The company states that a Certificate of Analysis is published for each released lot, issued by an independent laboratory named on the certificate, and that the lot number printed on each pack opens its certificate on a verification page. Published certificates report HPLC-UV purity and LC-MS identity. Orders ship to US addresses only ($15 standard, free at $500 or more, with express and overnight options), the tracking number is emailed at dispatch, and damaged or lost items are replaced or refunded rather than returned.
Pros
- Lot-level COAs with HPLC purity and LC-MS identity, searchable by the lot number on the pack
- Automatic volume tiers up to 15% off, with mixed compounds counting toward a tier
- One-pack minimum, same-day dispatch for in-stock orders paid before 2pm ET
Considerations
- Ships to US addresses only
- No registered legal entity or street address published (city only)
- No wholesale account, quote or payment-terms process; returns not accepted (damaged or lost items replaced or refunded)
Score Breakdown
Not currently ranked. We hold suppliers out of the numbered rankings until enough of the rubric has been verified, so that missing information can never work in a supplier's favour:
- overall evidence coverage 59% (needs 60%)
The dimension scores below reflect only what we were able to verify.
Overall score is calculated from these seven dimensions using the house weighting, and each dimension is calculated from the verified criteria beneath it. Open a dimension to see every criterion, its verified state, the source it was verified from and the date it was checked. Comparison pages may re-weight the dimensions for buyer intent.
Testing & Documentation 25%
10.0
- ✓Independent third-party testingSource: costides.us/us/how-we-test · checked 2026-09-08Verified
- ✓Batch-specific certificates of analysisSource: costides.us/ · checked 2026-09-08Verified
- ✓COAs publicly accessibleSource: costides.us/us/coa · checked 2026-09-08Verified
- ✓HPLC purity results publishedSource: costides.us/us/how-we-test · checked 2026-09-08Verified
- ✓Testing laboratory named or identifiableSource: costides.us/us/coa/CUS930-GHK100 · checked 2026-10-28Verified
- ✓Lot / batch traceabilitySource: costides.us/ · checked 2026-09-08Verified
- ✓Documentation package available to wholesale buyersSource: costides.us/us/how-we-test · checked 2026-10-28Verified
16 of 16 verified points met → 10.0/10. Items shown as not confirmed are excluded from both sides of that calculation.
Business Transparency 20%
Not assessed
- ?Registered business entity namedNot confirmed
- ?Verifiable physical addressNot confirmed
- ?Named team, ownership or leadershipNot confirmed
- ✓Direct contact email or phone, not a form onlySource: costides.us/us/contact · checked 2026-10-28Verified
- ✓Published terms, shipping and returns policiesSource: costides.us/us/terms · checked 2026-09-08Verified
- ✓Operating or shipping jurisdictions disclosedSource: costides.us/us/shipping · checked 2026-09-08Verified
- ?Business registration independently verifiableNot confirmed
- ?Manufacturing or sourcing origin statedNot confirmed
Too little of this dimension could be verified to publish a score, so it is excluded from the overall and the other weights are rebalanced.
Wholesale Capabilities 15%
6.7
- ✓Published wholesale or B2B programSource: costides.us/us/wholesale-peptides · checked 2026-10-28Verified
- ✓Tiered or volume pricingSource: costides.us/us/wholesale-peptides · checked 2026-10-28Verified
- ✓Minimum order quantity statedSource: costides.us/us/wholesale-peptides · checked 2026-10-28Verified
- –Bulk quantities (gram scale and above)Source: costides.us/us/wholesale-peptides · checked 2026-10-28Not offered
- ?Distributor or reseller supportNot confirmed
- ?Private-label programNot confirmed
- ?Custom orders acceptedNot confirmed
- –Dedicated wholesale enquiry / RFQ processSource: costides.us/us/faq · checked 2026-10-28Not offered
8 of 12 verified points met → 6.7/10. Items shown as not confirmed are excluded from both sides of that calculation.
Manufacturing Capabilities 15%
Not assessed
- ?In-house synthesis rather than resale onlyNot confirmed
- ?Manufacturing facility or partner disclosedNot confirmed
- ?Stated quality system (cGMP, ISO or equivalent)Not confirmed
- ?Custom sequence synthesis offeredNot confirmed
- ?Selectable purity gradesNot confirmed
- ?Stated production scale rangeNot confirmed
- ?Lyophilisation / fill-finish capabilityNot confirmed
- ?Stability or storage data publishedNot confirmed
Too little of this dimension could be verified to publish a score, so it is excluded from the overall and the other weights are rebalanced.
Commercial Purchasing 10%
Not assessed
- –Business account application or approvalSource: costides.us/us/faq · checked 2026-10-28Not offered
- –Quotes and purchase orders supportedSource: costides.us/us/faq · checked 2026-10-28Not offered
- ?Account-level or contract pricingNot confirmed
- ✓Multiple business payment methodsSource: costides.us/us/wholesale-peptides · checked 2026-10-28Verified
- ?Formal invoicing and documentationNot confirmed
- ?Named contact or account managerNot confirmed
- ?Repeat-order or standing-order supportNot confirmed
- ?Payment terms available to approved accountsNot confirmed
Too little of this dimension could be verified to publish a score, so it is excluded from the overall and the other weights are rebalanced.
Fulfillment & Logistics 10%
8.6
- ✓Domestic shipping with stated timeframesSource: costides.us/us/shipping · checked 2026-10-28Verified
- –International shippingSource: costides.us/us/shipping · checked 2026-10-28Not offered
- ?Cold-chain or temperature-controlled shippingNot confirmed
- ✓Lead times publishedSource: costides.us/us/ · checked 2026-10-28Verified
- ✓Order tracking providedSource: costides.us/us/shipping · checked 2026-10-28Verified
- ✓Stock or availability visible before orderingSource: costides.us/us/wholesale-peptides · checked 2026-10-28Verified
- ✓Stated packaging and handling standardsSource: costides.us/us/shipping · checked 2026-10-28Verified
- ✓Documented returns or discrepancy processSource: costides.us/us/returns · checked 2026-10-28Verified
12 of 14 verified points met → 8.6/10. Items shown as not confirmed are excluded from both sides of that calculation.
Website / Buyer Experience 5%
10.0
- ✓Secure, working site with no broken commerce pathsSource: costides.us/ · checked 2026-09-08Verified
- ✓Usable on mobileSource: costides.us/us/wholesale-peptides · checked 2026-10-28Verified
- ✓Product pages with specification detailSource: costides.us/ · checked 2026-09-08Verified
- ✓Search and filtering across the catalogueBrowser test: catalogue search for 'BPC' returned matching results · Source: costides.us/ · checked 2026-09-23Verified
- ✓COAs reachable in a few clicksSource: costides.us/ · checked 2026-09-08Verified
- ✓Pricing visible or obtainable without frictionSource: costides.us/ · checked 2026-09-08Verified
- ✓Clear path to the wholesale or B2B routeSource: costides.us/us/wholesale-peptides · checked 2026-09-08Verified
- ✓Visible support channelsSource: costides.us/us/contact · checked 2026-09-08Verified
15 of 15 verified points met → 10.0/10. Items shown as not confirmed are excluded from both sides of that calculation.
Rubric score 8.8 across the 59% of the rubric verified so far, adjusted for evidence coverage to a published score of 8.1. How this is calculated
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