GHK Copper Peptide Concentrate, cumpr ingredient cosmetic Longevity: Functional Medicine for Optimal Health and Wellness GHK cu Copper Peptide: The "Glow" for Hair & Skin Seenergie PH Most people think GHK Cu works because it's a skin peptide. That's surface level thinking. #GHK Cu doesn't start with wrinkles, scars, or hairlines. It starts with cellular repair signalling. GHK Cu is a copper peptide