GHK Cu: The Peptide That Transforms Skin and Tissue Health Calibrate Hydration GHK Cu = your skins built in youth signal , This powerful copper peptide works beneath the surface to:, Stimulate collagen + elastin, Repair and strengthen skin, Improve texture, tone, and 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 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