What is GHK Cu and Why is Everyone Talking About It? GHK Cu (Copper Peptide) is a powerful, naturally occurring compound in the body that plays a key role in skin health Copper Peptide Serum GHK Cu + Argireline + Matrixyl 3000 Ellis Have you heard of GHK Cu? It's a copper peptide your body actually makes on its ownand it plays a big role in how your skin repairs and heals. As we GHK Cu Topical Spray Wells Pharmacy Network