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 As a skincare founder who has spent $1.3 million testing products and procedures on her own face, I've tried more peptides than I can count at this point. GHK Cu is the one Molecular crystal structure of the tripeptide GHK Cu. In solution, Download Scientific Diagram GHK Cu Peptide: What It Does for Body Composition and Metabolic Health ION BLUE's Video on X