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 GHK Cu Skincare Products SumaNurica Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum All About GHK Cu Peptide More Than Just Cosmetic Defy GHK Cu (glycyl L histidyl L lysine) is a naturally occurring copper binding peptide found in human plasma. As levels decline with age, so may its support of the biological processes involved in collagen production, skin