1. Annotated sample COA
Tap any highlighted field below to see what it means. This is an illustrative example built for teaching purposes — it is not an actual product certificate.
2. Red-flag checklist
None of these prove a report is fake on their own, but any of them are reasons to ask questions before trusting the document:
- No batch/lot number, or the lot number doesn't match the product you're looking at.
- Generic or unverifiable lab name — "Independent Lab," "Certified Testing Services," or similar with no address, accreditation number, or way to confirm they exist.
- Missing or inconsistent dates — no test date, a date that predates when the product says it was manufactured, or a date in the future.
- No stated test method — a purity number with no indication of HPLC, LC-MS, or any named analytical technique behind it.
- Numbers that don't add up — e.g., a claimed purity of "99.9%+" for a product form where that level is essentially never seen in practice, or numbers that are identical across many different products/lots down to the decimal.
- The PDF's metadata contradicts the visible content — most PDF viewers show a "created" or "modified" date and author in the file's properties; a mismatch against what's shown in the document itself is worth a second look.
- The report can't be independently reproduced — the listed lab has no public contact method and doesn't respond when contacted directly.
3. Check your own COA
Upload a COA PDF to get an automated plain-English read of what's in it. This runs entirely in your browser — your file is never uploaded to DAAVY Research or any server, and nothing is stored.
This tool looks for common patterns (purity figures, method names, lot numbers, dates) using text matching — it is not a certified analysis and can miss things or misread an unusually formatted document. Always review the actual document yourself and use the checklist above; when in doubt, contact the testing laboratory directly.