Copper Peptide (GHK Cu): Clinical Uses, Stability & Compounding Tips The tripeptide GHKCu complex ameliorates lipopolysaccharideinduced acute lung injury in mice Oncotarget 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 In Vitro and in Vivo Studies of pH Sensitive GHK Cu Incorporated Polyaspartic and Polyacrylic Acid Superabsorbent Polymer ACS Omega GHK Cu Peptide: What It Does for Body Composition and Metabolic Health GHK Cu Cooper Peptide: The Complete Skin & Repair Guide (2026)