GHK CU GHKCu (glycyl L histidyl L lysine copper) is a naturally occurring copper peptide found in the human body, particularly in plasma, saliva, and urine. It plays a key role in skin regeneration by promoting Uncover the Power of GHK Cu peptide FIT9 I've tried everything for thin brows and lashes. Serums. Oils. Peptides. You name it. Nothing worked until GHK Cu copper. Copper peptides don't just sit on the surface they actually signal the really been enjoying this product @clrd.skin #skincare #peptides #ghkcu #beeftallow #glowingskin Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care