Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Biossance GHK Cu Hair Growth Copper Peptide Hair Growth Treatment GHK cu, AHK cu, Licorice Root Extract, Ginseng Root Extact Shed Copper Peptide Hair Growth Serum Take an Rx approach to hair health Before and after begins with consistency. Our 10% GHK Cu formula is engineered for deep absorption to support scalp health and visible density. Struggling with hair thinning or shedding? Meet GHK Cu, the topical peptide everyone is talking about and NO, it's not an injection! This powerful serum helps: Reduce shedding