Independent test result
L-Glutathione
by Ion Peptide
99.90 %
measured purity· February 7, 2026
How this batch compares
This batch measured 99.90%, 0.14 pts above Ion Peptide's average of 99.76% for this peptide over 19 batches, and 0.28 pts above the all-vendor average of 99.62% across 43 COAs from 14 vendors.
98.6% 100.0%
This batch 99.90% Vendor avg (19 batches) 99.76% Peptide avg (43 COAs) 99.62%