Site answer

Does a COA prove the peptide is pure or safe?

No. A COA covers the batch that was tested, not necessarily the vial you receive. It says nothing about safety or fitness for any use in humans, and a PDF can be edited or reused.

That is why pepmg doesn't claim to detect fake COAs. It looks at something checkable instead: who stands behind the document, with results that open on the testing lab's own site ranking highest. Testing your own vial is the only thing that speaks to that vial.

From: COA guide › What a COA does not prove

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.