Reddit asked questions. Here are answers. GHK Cu isn't newit's just not heavily marketed for hair (yet). Dr. Loren Pickart discovered it in the 70s. Decades of clinical research. Solid mechanism. We screwed Thermodynamically stable ionic liquid microemulsions pioneer pathways for topical delivery and peptide application ScienceDirect Buy GHK Cu Peptide 50 mg Skin, Hair & Tissue Repair Research Peptide Sublingual GHK Cu TruHealth Physical Therapy GHK Cu for hair growth does it actually work? Short answer: no. GHK Cu can be great for skin but when it comes to hair growth, the evidence just isn't there. And this Copper Peptide Hair Growth Serum AHK Cu & GHK Cu + Licorice Peptide Labz