GHK Cu Copper Peptide Shampoo Anti Hair Loss Shampoo Promotes New Peptide Labz GHK Cu is a copper peptide that plays a role in tissue repair and collagen synthesis. The result: improved texture, firmness, and overall skin quality. Rigid flexible nanocarriers loaded with active peptides for antioxidant and anti inflammatory applications in skin ScienceDirect Before and after begins with consistency. Our 10% GHK Cu formula is engineered for deep absorption to support scalp health and visible density.