GHK Cu (Copper Tripeptide Serum) in Santa Barbara, CA Eternity Health Partners 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 Repairing Serum 30ml SumaNurica 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 Cu Peptide Before and After: What to Expect for Skin and Hair