So excited about this peptide! GHK Cu serum and scalp solution available Fascinating peptide that helps to prevent and reduce fine lines and wrinkles. Applied topically on the scalp for hair growth. 5 alpha Reductase Inhibitors, Agonists and Modulators BOC Sciences Science Behind Copper Peptides & Hair Loss: Why GHK Cu Is a Game Changer HapiPatch 5 alpha Reductase Inhibitors, Agonists and Modulators BOC Sciences GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect