GHK Cu Peptide: What It Does for Body Composition and Metabolic Health GHK Cu Copper Peptide Skin Repair, Anti Aging & Healing The NAD Clinic The NAD Clinic Perth Busselton Home Visits 6 month GHK CU check in Main takeaway: skin transformation takes time. GHK CU peptide binds to copper and activates genes involved in wound healing, collagen synthesis, and skin remodeling. On the face, this translates GHK Cu Peptide Benefits and Side Effects: What to Expect from Injections