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 GHK Cu and Hair Loss: Local Scalp Helper or Systemic DHT Blocker? The Advancement of Herbal Based Nanomedicine for Hair 5 alpha Reductase Inhibitors, Agonists and Modulators BOC Sciences 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