What is a certificate of analysis?

Evidence

A certificate of analysis reports specified results for an identified material or sample. Its usefulness depends on the issuer, sample identity, methods, reporting limits, specification and date. A raw-material certificate is different from a finished-batch report. A short document headed COA is not a general efficacy or safety certificate.

Source review date: 2026-11-07

Put the answer to work

Find product recordsExplore ingredientsUse the tools

Sources

  1. NicoLeaks: testing scope and interpretation Testing methodology
  2. NIH ODS: dietary supplements, what you need to know Government reference

Source review date: . How we evaluate sources

Related questions

Suggest an update to this answer