GHK Cu is more than a skincare trend its a copper peptide involved in repair, regeneration, and cellular signaling., This peptide has been studied for its connection to collagen production, skin GHK Cu Peptide: What It Does for Body Composition and Metabolic Health The tripeptide GHKCu complex ameliorates lipopolysaccharideinduced acute lung injury in mice Oncotarget GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B