GHK Copper Peptide GHK Cu Tripeptide 1 Copper Peptide Serum GHK Cu + Argireline + Matrixyl 3000 GHK Cu Youthful Skin, Healthy Cells, Vibrant You. GHK Cu Peptides: Unlocking the Copper Peptide Revolution in Skin Care 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