Lab Results
Every batch is sent to an independent lab and documented before it reaches the shelf. Below are the Certificates of Analysis we have on file — average purity ranges from 99.00% to 99.808%, verified by Janoshik Analytical and Vanguard Laboratory.
Documented to the batch
We don't ask you to take a purity claim on faith. Each batch is analysed by HPLC and mass spectrometry at a third-party lab, and the report shows the average purity and average mass measured for that exact lot. Janoshik results are independently verifiable at verify.janoshik.com using the report ID printed on the certificate.
Most Janoshik reports in this set are dated May 21, 2026; Vanguard reports May 2, 2026 (GHK-Cu batch 4221M dates to November 2025). Each report also lists an average mass per vial — for example BPC-157 batch 4254C measured 10.47 mg. Posted certificates are added here as new batches are tested.
How to read a COA
- Batch — the lot number, matching the label on the vial you receive.
- Purity — the percentage of the target peptide by HPLC area, averaged across the analysed sample.
- Mass — the measured peptide content, confirming the vial contains the labelled amount.
- Lab — the independent facility that ran the analysis, not us.
Testing you can verify
Third-party testing only means something if you can check it. For Janoshik reports, the report ID on each certificate can be entered at verify.janoshik.com to confirm it's genuine and unaltered. Don't see a certificate for the batch you're researching? Ask us and we'll share what we have on file.
FOR LABORATORY RESEARCH USE ONLY — NOT FOR HUMAN OR VETERINARY USE. Purity figures reflect third-party analysis of the stated batch and are provided for informational, research purposes.