Amazon.com: GHK Cu Copper Peptide Supplement, 120mcg High Purity Supplement for Skin & Hair, Enteric Coated for Maximum Absorption, Vegan & Gluten Free (60 Count) : Health & Household GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true?, Copper peptide, known as GHK Cu, has a growing body of peer Copper Peptides Serum for Face 2% GHK CU & 4% EGF Seraphime Theoretical study of copper binding to GHK peptide ScienceDirect GHK Cu before and after : r Biohackers