Janoshik Analytical: the independent lab behind a peptide COA

When a Certificate of Analysis names Janoshik Analytical, it points to a specific independent testing laboratory rather than an unnamed "third party". Here is what that means.

An independent analytical lab

Janoshik Analytical is an independent European analytical laboratory widely used in the research-peptide community for third-party testing. Because it is independent of the seller, its results carry more weight than in-house numbers reported by the vendor alone.

What it measures

A typical report covers purity by HPLC, reported as an area percentage, and identity by mass spectrometry, confirming the molecular weight of the compound. Some reports also include water content and endotoxin testing. Each result is recorded against a specific sample.

Why a named lab matters

Anonymous "third-party tested" language cannot be checked. A named lab can: the report references a real testing source, real instrument data, and a lot number you can match to your vial. Peptiko publishes the lab-named COA for each batch in COA Lookup.

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