GHK Cu Copper Peptide 100mg Cambridge Quantum Bio GHK Cu is a naturally occurring copper binding peptide that plays a major role in tissue repair and remodeling, with a strong focus in research on skin and hair biology. It works by signaling GHK Cu Peptides for Research 99% Purity Guaranteed GHK CU COPPER PEPTIDE 5MG 10MG 50MG 100MG VIAL UMBRELLA Labs Buy GHK Cu 50mg 100mg Third Party Tested BioEdge Peptides