GHK Cu Copper Peptide Neck & Face Serum GHK CU Copper Peptide, Face Serum, 1 oz (30 ml) GHK Cu Copper Peptide 100mg Cambridge Quantum Bio Viral claim says GHK Cu reset nearly 4,000 genes to a younger state and increased collagen production in a preclinical study. This refers to research on GHK Cu, a naturally occurring copper binding peptide that 89030 95 5 GHK Cu Gly His Lys Cu Copper Tripeptide 1; Prezatide copper Buy GHK Cu Copper Peptide (50mg) 99% Purity USA Made