Copper Tripeptide (GHK Cu) for Advanced Skincare & Haircare Formulatio GHK Cu (100mg) OWLchemi GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true? Copper peptide, known as GHK Cu, has GHK CU has human trials going back decades. If you're interested in anti aging and skin health, GHK CU really should be in your routine. GHK Cu might be trending, but its not new., Before you inject yourself with this viral peptide, consider this., This copper peptide has been studied for years in skin repair and collagen signalling,