GHK Cu Peptide Before and After Results WO2019167070A1 Topical copper tripeptide composition and process of preparation. Google Patents 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 Copper Peptide Serum Private Label Skin Repair GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia