Verify any Certificate of Analysis
Every Peptiko reagent ships with a unique lot number and a third-party verified Certificate of Analysis. Enter the lot number below to verify the batch and download the COA.
Enter your lot number
Format: PEP-COMPOUND-DATE-SEQUENCE · Found on your invoice or vial label
Try a sample lot
- PEP-BPCTB-20260101-001 — BPC-157 + TB-500
- PEP-GHKCU-20260115-001 — GHK-Cu
- PEP-EPI-20260201-001 — Epithalon
- PEP-SEL-20260215-001 — Selank
- PEP-MOTSC-20260301-001 — MOTS-c
What is a Certificate of Analysis?
A Certificate of Analysis (COA) is the document that confirms the identity, purity, and quality of a batch of laboratory reagent. It is the only objective proof of what is inside a vial. Without one, there is no verification.
Every COA Peptiko issues includes:
- Compound identification — name, CAS number, molecular weight
- Lot number — unique to the batch, traceable end-to-end
- HPLC purity — verified by reverse-phase chromatography
- Mass spectrometry confirmation — molecular identity check via ESI-MS
- Independent laboratory source — third-party verified, never in-house only
- Storage and handling conditions
- Expiry date — based on stability data
Why we publish COAs publicly
Most peptide vendors keep COAs behind a paywall or only share them after purchase. We publish lot numbers publicly because verification should not require a transaction. If you can verify the standard before you order, you have meaningful trust. If you cannot, you have a marketing claim.
Independent testing in 2026 shows that nearly 40 percent of peptide reagent vendors fail to meet their stated purity claims. Public COA verification is the only protection a researcher has.
About our laboratory partner
Peptiko works with Janoshik Analytical (Czech Republic) and other accredited third-party laboratories for batch verification. Each lot is tested by reverse-phase HPLC for purity quantification and ESI-MS for molecular identity confirmation. Results are released only after passing both tests.