GHK Cu Peptide Therapy Brea, CA Orange County Copper Peptide (GHK Cu) 2% Recovery Serum 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 Copper peptides explained what are the differences between copper peptides and GHK CU peptides? What they actually do for the skin in terms of repair and collagen, and what you can and cant mix GHK Cu Copper Peptide Regeneration, Skin Renewal & Anti Age