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 GHK CU Peptide for Skin Rejuvenation Wittmer Rejuvenation Clinic GHK Cu Peptide Progress: Week 3 Results A Theoretical Link Between the GH IGF 1 Axis and Cytokine Family in Children: Current Knowledge and Future Perspectives Pediatric Implications of Normal Insulin GH IGF Axis Physiology Endotext NCBI Bookshelf