Every batch. Tested. Signed. Posted.
We send every production batch to Janoshik Analytical — the lab trusted across the research-peptide industry — for HPLC purity, mass spec confirmation, and endotoxin testing. The signed COA for your exact lot number is available here, free, before and after you order.
HPLC Purity
≥99% threshold · quantitative
Mass Spectrometry
Confirms exact compound identity
Endotoxin (LAL)
Sterile-injection grade limits
Verify your batch
Enter the lot number printed on your vial or packing slip.
Published batches
Most recent COAs across the catalog. Every product page links to the lot you'll receive.
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Why Janoshik?
Janoshik Analytical is the most-cited independent lab in the research-peptide community, used by every serious vendor and a long list of academic groups. Their reports are signed and dated, and they keep their own ledger of which vendors have submitted samples — which means you can cross-check us independently.
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