Independent test result
GHK-Cu
99.63 %
measured purity· May 1, 2026
How this batch compares
This batch measured 99.63%, right at the all-vendor average of 99.61% across 142 COAs from 36 vendors.
85.6% 100.0%
This batch 99.63% Peptide avg (142 COAs) 99.61%