Revitalize Your Skin: The Benefits of Copper Peptide for Youthful Glow Smooth Crepey Neck Skin with GHK Peptides Skin Lifting Creams and Serums to Help Neck Creases and Skin Discolorations Skin Biology 1 800 405 1912 GHK Cu Hair Growth 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 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an updateit's been 12 weeks since I started using GHK