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 Inhibition of type 1 and type 2 5 reductase activity by free fatty acids, active ingredients of Permixon ScienceDirect Attacking DHT: A Guide To Inhibiting 5 Alpha Reductase For Hair Loss Caffeic acid N [3,5 bis(trifluoromethyl)phenyl] amide as a non steroidal inhibitor for steroid 5 reductase type 1 using a human keratinocyte cell based assay and molecular dynamics Scientific Reports The Advancement of Herbal Based Nanomedicine for Hair Expression and Purification of Recombinant GHK Tripeptides Are Able to Protect against Acute Cardiotoxicity from Exposure to Waterborne Copper in Zebrafish