GHK Cu Peptides: Unlocking the Copper Peptide Revolution in Skin Care Subcutaneous Injection: What It Is and How to Give One GHK Cu 50mg Skin & Tissue Repair Research Peptide 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