Buy GHK Cu UK Copper Peptide 100mg UK Peptide Lab 2 x GHK 100MG Bundle Research use only (For Laboratory Use Only) Dr Peptides 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 100mg Peplogix GHK Cu (100 MG) Sigma Compounds Retatrulean Australia's #1 Peptide Supplier