We aggregate 13,201 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.
Lab tests
13,201
Peptides tested
77
Brands analyzed
318
As of 2026-09-16. 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.
Have a lab test COA?
Submit it - free, takes 2 minutes, helps the community verify purity across brands.