Before relying on a certificate of analysis, ask whether the report is tied to the actual batch, whether the laboratory is independent, which methods were used, and which questions were not tested.
Purity by HPLC does not establish sterility. A mass result does not establish clinical effectiveness. A PDF does not establish Canadian authorization.
For a detailed explanation, read what a peptide COA can and cannot prove.
Evidence companion: For molecule-specific evidence and Canadian authorization reporting, consult PeptideInfo.ca.
General education only. Reviewed against the linked sources; not individualized medical advice.