S1 Research

S1 Research scores 91/100 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: most COAs openable at the testing lab (71 of 130). 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 (Freedom Diagnostics, Janoshik, 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 below the tracked median across the compounds it shares with other tracked vendors, over 28 tracked listings. Its prices are machine-readable and it publishes an About page, and the domain has been online about 1.4 years. This rates what S1 Research 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 (Freedom Diagnostics, Janoshik, Kovera Labs) — vendor-hosted documents with lab verification links — 130 COA documents found, 71 with links to the testing lab's own site (some labs restrict automated access)

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