GHK Cu Peptide: What It Does for Body Composition and Metabolic Health Copper Calm (GHK CU & KPV) Disguised Alpha GHK Cu is a naturally occurring copper binding peptide that plays a major role in tissue repair and remodeling, with a strong focus in research on skin and hair biology. It works by signaling GHK Cu Peptide: What It Does for Body Composition and Metabolic Health GHK Cu Peptide Copper Peptide Research Beyond Peptides