Top 9 GHK Cu Benefits for Skin, Hair, and Anti Aging Why Collagen Loss Accelerates After 40: The Role of GHK Cu in Menopaus Pure & Cimple Fitish Most people don't know GHK Cu by name. Their face does. It's the peptide your body uses to signal collagen production, repair tissue, Instagram GHK Cu Peptide: Mechanism, Anti Aging Research, and Regenerative Benefits Viral claim says GHK Cu reset nearly 4,000 genes to a younger state and increased collagen production in a preclinical study. This refers to research on GHK Cu, a naturally occurring copper binding peptide that GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes