Amazon.com: GHK Cu Copper Peptide Oral Liquid Drops, 6 in 1 Liposomal GHK Cu Supplement w. Marine Collagen Peptides, Hyaluronic Acid, Biotin & Grape Seed, Support Skin Elasticity, Anti Aging, Hair Growth & Nails : Health The Bright and Dark Sides of Reactive Oxygen Species Generated by CopperPeptide Complexes Copper tripeptide (GHK Cu; Copper Glycyl histidine tripeptide) CAS 89030 95 5 AbMole BioScience Copper tripeptide Price 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 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 +