GHK Cu Peptides Benefits for Anti Aging Skin Rejuvenation How to Use With Micro Infusion I'm Fabulous Cosmetics GHK CU Crepey Skin Escape Platinum Skin Care All About GHK Cu Peptide More Than Just Cosmetic Defy GHK Cu (glycyl L histidyl L lysine) is a naturally occurring copper binding peptide found in human plasma. As levels decline with age, so may its support of the biological processes involved in collagen production, skin GHK Cu Copper Peptide Collagen Boost & Skin Regeneration Calibrate Hydration 7% GHK Cu Cosmetic Ingredient Accelerant Skin Biology 15 ml