GenPeptide scores 83/100 in pepmg's criteria-based Vendor Score, which rates only what a vendor publishes about lab testing and about itself, not its products and not its prices. What we observed: a few COAs openable at the testing lab (6 of 44). The biggest credibility signal pepmg weighs is how a vendor publishes lab tests: the documents counted above open at the testing lab's own site (Kovera Labs), where the lab itself can confirm the result, and the rest are hosted by the vendor, where it cannot. Neither price nor catalog size affects this score, but for context it prices around the tracked median across the compounds it shares with other tracked vendors, over 31 tracked listings. Its prices are machine-readable and it publishes an About page, and the domain has been online about 1 year. This rates what GenPeptide publishes about lab testing and about itself, not the purity or authenticity of any vial, which pepmg can't verify, so read the COAs yourself. Research use only.

• Strength Third-party lab named (Chromate Labs, Freedom Diagnostics) — documents self-hosted, not lab-confirmable — 44 COA documents found, 6 of them openable at the testing lab's own site

Are you the vendor? If you have changed something we score here, published something we did not find, or think we got it wrong, reach out or email hello@pepmg.com and we will re-check. Vendor corrections have already changed ratings on this site.