GHK Cu (Glycyl L Histidyl L Lysine Copper) is a naturally occurring copper peptide that is gaining attention in hair care for its regenerative properties. It is a non hormonal option that can help improve the cosmetic appearance of 40% Off! Neurogan GHK Cu Copper Peptide Hair & Scalp Serum How GHK Peptide Works Signaling GHK acts as a switch for skin repair: Interacts with adenosine receptors reduces inflammation Activates MAPK ERK, PI3K Akt, TGF pathways Stimulates fibroblasts & keratinocytes boosts collagen, elastin Frontiers Exploring the beneficial effects of GHK Cu on an experimental model of colitis and the underlying mechanisms