OneDay Compounds

OneDay Compounds scores 72/100 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: third-party COAs, self-hosted. The biggest credibility signal pepmg weighs is how a vendor publishes lab tests: its documents resolve to Vanguard Laboratory, but pepmg could open none of them at the lab's own site, so a buyer can read them on the vendor's site without being able to confirm them at the source. 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 27 tracked listings. Its prices are machine-readable, and the domain is newer, online since Jan 2026, which pepmg counts as neutral rather than a mark against it. This rates what OneDay Compounds 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 (Vanguard Laboratory) — documents self-hosted, not lab-confirmable — 143 COA documents found, 0 with links to the testing lab's own site (some labs restrict automated access)

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