We aggregate 13,189 third-party lab tests covering HPLC purity, endotoxin levels, and quantity verification from independent laboratories. Every report is submitted by the community and verified before publication.
As of 2026-09-23. This is the number of certificates published on the platform. The Purity Index reports a smaller indexed figure — the subset that meets its inclusion rules (at least five tests per compound, recency-weighted).
High-Performance Liquid Chromatography (HPLC) is the gold standard for measuring peptide purity. It separates compounds in a sample and measures the percentage of the target peptide versus impurities. 98%+ is pharmaceutical grade; 95%+ is research grade.
02 · Endotoxins
Understanding Endotoxin Levels
Endotoxins are bacterial lipopolysaccharides that can cause fever and inflammation. The FDA limit for injectable products is 5 EU/kg body weight per hour. Results below 0.1 EU/mg are typically considered safe for research applications.
03 · Submit
How to Submit Your Lab Test
Help the community by submitting your third-party lab test results. You'll need the original certificate from an accredited laboratory, details about the peptide and brand tested, and the testing date. All submissions are reviewed before publication.
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