Visual PeptidePurity & Verification
Third-party testing is the standard for verifying peptide purity and identity. We recommend using an independent lab before sourcing.
For procurement or QC: enter a report's task ID below to open the lab's official verification page. See guide: Purity and sourcing
Verify a report
Enter the task ID from your Janoshik report (e.g. on the report PDF). We'll open the lab's official verification page for that ID.
On the lab's page, confirm that the report content matches what you received. We do not store or validate reports; verification is done on Janoshik's site.
Janoshik Analytical
Janoshik provides HPLC purity testing, mass spectrometry (identity), and potency testing. Reports include a unique task ID and verification key so you can confirm the report has not been altered.
- Purity (HPLC) — ideally 99%+
- Identity (mass spec)
- Potency (actual mg per vial)
- Blind testing available (vendor not informed)
Public results database
Janoshik hosts a public database of test results by peptide type and vendor. Search by peptide or vendor to see if a batch or supplier has been tested.
public.janoshik.com →After verifying reports, see Suppliers & sourcing for options. We do not run tests ourselves; always verify via the lab's official site (e.g. task ID on Janoshik) and follow your institution's or jurisdiction's requirements.