What to check
- Match product name, strength, batch, lab, method, and test date.
- Check whether the same PDF appears across multiple listings.
- Look for HPLC or mass spectrometry language, but do not treat jargon as proof.
- Compare the date against current inventory, not last year's batch.
- If the COA is private until after payment, the trust problem is still unresolved.
The fastest safe path is still the same: batch, COA, label, payment, support, and dispatch proof before trust.
Run the batch checker