◇ Certificates of Analysis
Lab-Verified.
Pathology
Independent verification.
Every batch is tested by Janoshik Analytical — an independent third-party lab specializing in peptide purity analysis via HPLC and mass spectrometry. Click any compound below to view its full certificate of analysis.
Semaglutide
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Retatrutide
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Tirzepatide
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MOTS-c
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BPC-157
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TB-500
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GHK-Cu
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Tesamorelin
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SS-31
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Kisspeptin-10
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What is Janoshik? Janoshik Analytical is an independent European lab widely recognized in the research community for unbiased third-party peptide verification.
How to read a certificate. Look for identity confirmation (mass spectrometry match to the expected molecular weight), purity percentage (HPLC), and batch identifier. All Pepmaxxing certificates report ≥99% purity unless otherwise noted on the certificate itself.