GHK Cu 100MG SSP Research Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms GHKCu 50mg High Purity, U.S. Made Research Peptides OROS Research GHK cu is a copper peptide. It's great for skin, especially when you combine it with other things. My favorite is DMSO and derma rolling. My first experience with copper peptides was Procytes GHK CU 100MG MOB Biotech Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000