How to Verify a Peptide COA: 7 Checks Before You Trust the Report
To verify a peptide COA, open the report on the testing lab’s own website, not the seller’s PDF. Then confirm the numbers match, the lot number matches your vial, and the sample wasn’t hand-picked. Check that identity, purity and content were each tested. Endotoxin and sterility are separate tests, and a purity number covers neither. …