Safety & Legality
How to Verify Peptide Quality: COA, HPLC, and What to Look For
7 min read0 peptides covered
Guide to verifying peptide quality — understanding COAs, HPLC testing, purity standards, and red flags.
How do I know if my peptides are real?
Look for: Certificate of Analysis (COA) with HPLC purity >98%, mass spectrometry confirmation, batch-specific testing, third-party verification. Red flags: no COA available, purity under 95%, vague testing claims, prices significantly below market, no company information.