GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia 07 MARGOLINA c_04 LORD_c The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline 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