Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum GHK Cu is one of those peptides that has incredible benefits and this Indonesian brand shocked me with a product that is both well formulated and well researched #ghk #copperpeptides #peptides Custom Logo Best GHK CU Facial Essence Firming Lift Anti Aging Best peptide skin care products Healthy skin works best when it's supported on every level.interested? Please Read GHK Cu main ingredient It's a copper peptide your body naturally produces when you're young. It plays a key role in GHK CU Copper Peptide, Hair & Scalp Serum, 2 oz (60 ml)