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

Independent test result

SS-31

by Reta One Labs· batch SS100626

99.19 %

measured purity· May 28, 2026

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

How this batch compares

This batch measured 99.19%, right at Reta One Labs's average of 99.19% for this peptide over 2 batches, and 0.53 pts below the all-vendor average of 99.72% across 117 COAs from 29 vendors.

98.5% 100.0%
This batch 99.19% Vendor avg (2 batches) 99.19% Peptide avg (117 COAs) 99.72%
Compare pricing

See SS-31 pricing across 29 verified vendors

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