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 GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia Does it work? Maneup GHK Cu hair growth serum : r tressless holi (growth) 84 leave in hair growth scalp spray with redensyl, coppe Agent Nateur Peptides Results Ghkcu TikTok GHK CU Before and After Pictures Topical GHK Cu Skin Results, Face Serum Reviews & Photo Results Neurogan Health