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

Independent test result

Glutathione

by Peptide Supply Co.· batch GTT1.505192026

99.03 %

measured purity· May 20, 2026

How this batch compares

This batch measured 99.03%, 0.29 pts below Peptide Supply Co.'s average of 99.32% for this peptide over 2 batches, and 0.54 pts below the all-vendor average of 99.57% across 31 COAs from 13 vendors.

98.6% 100.0%
This batch 99.03% Vendor avg (2 batches) 99.32% Peptide avg (31 COAs) 99.57%