GHK Cu (Copper Peptide) is a naturally occurring peptide in the body that binds with copper to support cell repair and renewal. As we age, our levels decrease and thats where supplementation or Amazon.com: Skin Perfection Copper Peptide Serum GHK CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp 1% Blue Liquid for Face, Neck, Body, Scalp Multi Use Serum Booster with Felicite Did you know GHK Cu is one of the most studied peptides for skin health and tissue repair? This copper peptide has been explored for its potential to: Boost GHK Cu Peptide Benefits for Skin and Hair LIVV Natural Copper Tripeptide 1 (GHK Cu): The Premier Anti Aging Ingredient for Skincare Formulators Titan Biotech Ltd.