GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B 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 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 Does Ghk Cu Develop Tolerance GHK Cu Peptide Benefits for Skin and Hair LIVV Natural