GHK Cu before and after : r Biohackers 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 Transform Your Skin with GHK Cu Benefits Get glowing skin with GHK CU peptide therapy GHK CU is a naturally occurring plasma peptide that significantly declines during aging. GHK CU exhibits anti aging properties by: stimulating collagen production improving skin elasticity and The Ultimate Guide to Copper Peptides for Skin Before and After Bene HapiPatch