Certificates of Analysis
Every batch is independently tested by Janoshik Analytical, a third-party laboratory with no commercial interest in our products. Each certificate includes HPLC purity analysis and mass spectrometry identity confirmation.
For research use only. Not for human consumption.
Third-Party Tested
Janoshik Analytical
HPLC + Mass Spec
Purity + identity verified
QR Verifiable
Scan to verify at janoshik.com
How to Read a Certificate of Analysis
Purity (%)
The percentage of the target compound vs total sample mass, measured by HPLC. All PepC.Labs products are ≥99%.
Mass Spectrometry
Confirms the molecular identity by measuring exact mass. HPLC tells you how pure, mass spec tells you what it actually is.
Task Number
Janoshik's unique job reference. You can verify any certificate at janoshik.com/verify using the QR code or task number.
Batch Number
Links the certificate to the specific batch of product in your vial. Every batch is tested independently.
Published Certificates (10 products)
COA Coming Soon
Bacteriostatic Water
10ml — Certificate pending
Glutathione
1200mg — Certificate pending
Semax
10mg — Certificate pending
Need a specific batch certificate?
If you need a COA for a specific batch not shown here, or need the full HPLC chromatogram and mass spectrometry data for publication purposes, contact us directly.
Contact UsFor research use only. Not for human consumption. All products are sold strictly for laboratory research purposes. Certificates of Analysis are provided for batch verification and research protocol documentation.