GHK CU 100MG MOB Biotech 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 50mg OP Labs (Formerly Oxford Peptides) GHK Cu 200MG (Topical) Raw Amino GHKCu 50mg High Purity, U.S. Made Research Peptides OROS Research THE SURPRISINGLY EFFECTIVE DMSO + COPPER PEPTIDE CREAM! http: store.reverseskinaging.com 3_3_GHK_Cu_Body_Soothing_Cream_p 65.htm What Makes This Product Different: Soothe tired, lax skin on the body with this product that is the first of its kind! Dr.