Reactive oxygen generation by minimal copper binding peptide motifs bioRxiv More than hair its cellular support , GHK CU is a well studied copper peptide known for its role in supporting:, Healthier looking hair & scalp environment, Hair that appears thicker, The Bright and Dark Sides of Reactive Oxygen Species Generated by CopperPeptide Complexes Everyone's calling GHK Cu a miracle peptide But let's separate marketing from mechanism. GHK Cu isn't magic. It's a signal. A signal that: Supports tissue repair Modulates inflammation Enhances collagen +