GHK Cu Youthful Skin, Healthy Cells, Vibrant You. Ghk Cu Injection Etsy Australia What is GHK Cu and Why is Everyone Talking About It? GHK Cu (Copper Peptide) is a powerful, naturally occurring compound in the body that plays a key role in skin health Page 1 Reviews Neurogan Health, Copper Peptide GHK CU, 120 mcg, 60 Tablets, 0.52 oz (15 g) iHerb Uses and Benefits #ghk GHK Cu is a naturally occurring peptide in human plasma that declines with age. When used in injections (usually subcutaneous), it can offer various benefits: Skin Rejuvenation and Anti Aging: