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 GK500826

99.49 %

measured purity· September 2, 2026

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How this batch compares

This batch measured 99.49%, 0.26 pts below Reta One Labs's average of 99.74% for this peptide over 7 batches, and 0.15 pts below the all-vendor average of 99.64% across 287 COAs from 60 vendors.

85.6% 100.0%
This batch 99.49% Vendor avg (7 batches) 99.74% Peptide avg (287 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