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

Independent test result

GHK-Cu

by Reta One Labs· batch GK1000426

99.86 %

measured purity(HPLC)

HPLC purity
99.862
Net peptide content
108.35

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

How this batch compares

This batch measured 99.86%, 0.08 pts above Reta One Labs's average of 99.78% for this peptide over 6 batches, and 0.23 pts above the all-vendor average of 99.64% across 286 COAs from 60 vendors.

85.6% 100.0%
This batch 99.86% Vendor avg (6 batches) 99.78% Peptide avg (286 COAs) 99.64%
Compare pricing

See GHK-Cu pricing across 60 verified vendors

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

Where to buy

Product pages for this peptide at Reta One Labs

From the same lot

Other tests in lot GK1000426

Same batch, independently tested. Cross-confirm the purity claim.