A Certificate of Analysis (COA) is a lot document. It describes the material that was tested for one production batch — not a marketing claim about every vial a company has ever sold.
When you open a Revolution Peptide COA, start with three fields: the compound name, the lot identifier, and the test date. The lot on the vial should match the lot on the PDF. If it does not, treat the document as historical and request the current file.
What a COA usually shows
- Compound identity and listed amount
- Lot or batch code
- Analytical method (often HPLC, sometimes LC-MS)
- Appearance and any reported impurities
- A report or document number
Purity percentages belong on the certificate, not in advertising copy. If a COA does not print a purity value, do not assume one. See Understanding HPLC Peptide Purity for how those numbers are generated.
How to match a vial to a document
Compare the lot string on the vial or pen label to the lot on the COA. Then confirm the product page still links that same file. The current library is at Certificates of Analysis. If a listing has no current file, read Quality and Testing before relying on any identity claim.
For a worked example, open BPC-157 and use View Current COA when a certificate is attached. Related reading: Why Lot-Specific Testing Matters.
Research use only. This article is educational. It is not a protocol for human administration.