Before vs. after 3 months of GHK Cu peptide therapy smoother texture, more even tone, and skin that looks healthier overall. Small peptide, big difference Evaluating the stability and safety of GHK Cu encapsulated in an Download Scientific Diagram 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 Copper Peptide GHK Cu Tripeptide 1