Amazon.com: Skin Perfection Copper Peptide Serum GHK CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp 1% Blue Liquid for Face, Neck, Body, Scalp Multi Use Serum Booster with PSA] Finally, a Dr. explains the mechanism behind the "copper uglies" : r SkincareAddiction Starting RETA + GHK Cu science backed, glow focused, and getting shredded. , DM me for Reta, GHK CU and other peptides, #peptide #peptides #biohacking #gym #reta GHK Cu for Hair Loss: Evidence, Safety, and UK Treatment Options Bolt Pharmacy Two Weeks on GHK CU by Rory Uphold The Ladies Room 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