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 What is a GHK CU Injection? Benefits and Uses Prime IV The power of copper peptides for hair growth GHK Cu isn't just another trend, it's a science backed peptide that helps stimulate hair follicles, reduce inflammation, and improve scalp health for thicker, Two Weeks on GHK CU by Rory Uphold The Ladies Room