Every peptide. Independently verified.

Janoshik Analytical is the peptide research industry's independent third-party analytical lab. They run HPLC (High-Performance Liquid Chromatography) to confirm purity and MS (Mass Spectrometry) to confirm molecular identity. Their reports are the industry standard because every certificate is independently verifiable on their public verification tool at janoshik.com.

Click the Verify on Janoshik button on any certificate above (or on any product page). Janoshik's verification tool opens in a new tab — enter the verification key printed on the CoA and Janoshik will confirm the report is authentic and unmodified.

The purity percentage represents the proportion of the peptide sequence relative to the total sample content as measured by HPLC. Our standard is above 98% purity for every product listed. The peaks and integrations that produced the number are visible in the full CoA PDF.

Not every product on the site is a peptide, and not every product goes through the same testing route. NAD+, for example, is a dinucleotide — not a peptide — and analytical labs don't offer the same HPLC + MS panels for it. Nasal sprays and oral capsules are finished formulations — the peptide inside was verified at the raw-ingredient stage, but the finished product itself doesn't receive a separate certificate. Research supplies (bacteriostatic water, syringes, wipes, reconstitution kits) don't require CoAs. In every case, our supplier standards and quality-control processes are the same — the underlying purity is verified through the manufacturing chain regardless of whether a public CoA exists.

Yes. Every certificate card has a Download PDF button — the full Janoshik lab report downloads for your files.