Limitless Biotech GHK Cu Capsules Shawn Wells If you don't know you should ask somebody. GHK Cu (copper peptide) is a potent, naturally occurring regenerative compound that reverses skin aging, accelerates wound healing, reduces inflammation, and promotes hair growth. It GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes GHK Cu Peptide Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy Neurogan Health, Copper Peptide GHK CU, 120 mcg, 60 Tablets iHerb GHK Cu Peptides: Unlocking the Copper Peptide Revolution in Skin Care