Janoshik COA
Every batch is independently tested by Janoshik Analytical. Verify yours below.
Verify a batch
Enter the batch number printed on your vial label or shipping note. We will respond with the corresponding Janoshik COA PDF.
Independent testing
Every batch is tested by Janoshik Analytical, not by us.
Full COA
HPLC purity, mass-spec confirmation, water content and net peptide ratio.
Refund on failure
If a batch fails customer testing, we refund the full amount.