Peptide COA Checker

A free, interactive tool to audit a peptide Certificate of Analysis (COA) before you trust it. Check off what your COA actually contains and get an instant strength score, the specific red flags to watch for, and the exact steps to confirm the COA is real. Educational and for laboratory research use only — this is a self-audit checklist, not a judgment about any specific product or vendor.

RESEARCH USE ONLY — EDUCATIONAL SELF-AUDIT. This checklist helps you evaluate a Certificate of Analysis. It does not determine whether any specific product or vendor is genuine or fraudulent, and is not medical, dosing, or usage guidance.

Audit your COA — check what it actually contains

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Red flags of a fake or recycled COA

Most peptide scams don't fake the powder — they fake the paperwork. Watch for:

  • A purity number with no chromatogram, or a chromatogram image that looks pasted in. Real HPLC/MS reports show the actual traces.
  • The same chromatogram across different products — same date, same numbers, same curve, just a different compound name. That's a copy-paste fake.
  • No lot/batch number, or one that doesn't match your vial. An untraceable COA could belong to any batch.
  • An unnamed or unverifiable lab — "third-party tested" with no lab you can actually check.
  • Purity only, never identity. HPLC says how pure; mass spec says whether it's even the right molecule. A COA without identity confirmation is only half the story.
  • A years-old test date presented as current.

How to verify a COA is actually real (3 steps)

  1. Find the lab and the report ID. A legitimate COA names the testing lab and carries a report/order number or verification key.
  2. Look it up on the lab's OWN portal — not a PDF the seller emailed you. Many labs (e.g. Janoshik at public.janoshik.com) let you enter the report ID and see the original result directly from the source. If it can't be verified at the source, treat it as unverified.
  3. Match the batch to your vial. Confirm the lot number on the COA matches the number printed on the vial you received. No match = the COA doesn't describe your material.

New to reading these? Our full how to read a COA guide breaks down every section, and you can practice on real, published COAs in the NovaForge COA library.

Sponsor disclosure: reference materials for the compounds discussed on this site are supplied strictly for laboratory research use only by NovaForge Labs — every lot is third-party HPLC-tested with a published, lot-specific Certificate of Analysis. NovaForge Labs is a sponsor of The Peptide Review. This tool is an educational self-audit and does not certify or condemn any specific product or vendor.

Frequently asked questions

How do I know if a peptide Certificate of Analysis (COA) is fake?
The common red flags: no third-party lab is named, there is no lot number, the purity is a round figure with no chromatogram or method behind it, or the certificate could belong to any batch. If a COA can't be traced to your specific vial, it's decoration. This free checker walks you through those red flags.
What is a Certificate of Analysis (COA)?
A COA is a laboratory document that reports the identity and purity of a specific lot of material. A meaningful COA is lot-specific and comes from an independent third-party lab.
What should a real peptide COA include?
A named third-party laboratory, a lot number that matches the label on your vial, identity confirmation (for example by mass spectrometry), purity reported by HPLC area, and the method used to measure it.
Why does the lot number on a COA matter?
The lot number is what ties the paper to your specific vial. Without it, a COA is a generic marketing document that could describe any batch.