GHK CU Copper Peptide, Face Cream, 2 oz (60 ml) 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 (10 mg, 50 mg, 100 mg) COA verified peptide Nootropix GHK CU COPPER PEPTIDES TABLETS The Beauty Doctrine Buy GHK Cu 100mg Peptide COA Verified UK GHK Cu 100mg Peplogix