For research use only. Not for human consumption. Not medical advice — consult a licensed clinician.

Independent test result

LL-37

by Modern Research Peptides· batch GCEMHK0226

99.96 %

measured purity· March 10, 2026

New to reading a COA? See how to read a peptide COA →

How this batch compares

This batch measured 99.96%, 0.59 pts above the all-vendor average of 99.37% across 47 COAs from 19 vendors.

90.4% 100.0%
This batch 99.96% Peptide avg (47 COAs) 99.37%
Compare pricing

See LL-37 pricing across 19 verified vendors

Merit's price comparison page pulls current listings so you can cross-check purity history vendor by vendor.