Copper, Collagen, and Controversy: Inside the GHK Cu Buzz AHK CU Dosage Guide: How Much to Use Daily Neurogan Health GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes The tripeptide GHKCu complex ameliorates lipopolysaccharideinduced acute lung injury in mice Oncotarget The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds, Dimeric copper peptide incorporated hydrogel for promoting diabetic wound healing Nature Communications