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What is the Vendor Score, and how is it calculated?

The Vendor Score is out of 100 and counts only what a vendor publishes that pepmg can observe. COA transparency is worth up to 87 points, set by the strongest evidence found: certificates that open on the testing lab's own site score highest, then a third-party lab named on self-hosted documents, then unattributed documents, a sign-in-gated COA page, and finally a bare claim.

A real About page adds up to 8 and machine-readable public prices add 5. Price position, catalog size and domain age are shown as facts and earn no points, and affiliate status is never an input.

From: Methodology › The Vendor Score

All help topics · Answers restate pepmg's own pages; the linked section is the authority.

All products listed are sold by third-party vendors for laboratory and research use only (RUO). Where an FDA label or a peer-reviewed study has published a dose, pepmg reports it with the source named, because that is safer than guessing. It is a report, not medical advice and not a recommendation to use anything. pepmg sells nothing and ships nothing. Listings are price-tracking data, not endorsements.