GHK Cu 50MG Raw Amino GHK Cu 50MG Oneday Compounds GHKCU GHK Cu is a naturally occurring copper peptide found in the body that plays a key role in regeneration and repair. It supports collagen production, which helps improve skin Lets talk GHK Cu , GHK Cu is a naturally occurring copper peptide that supports:, Collagen production, Tissue repair, Skin rejuvenation, Reducing Inflammation , Healthy aging, As levels