Copper peptides explained what are the differences between copper peptides and GHK CU peptides? What they actually do for the skin in terms of repair and collagen, and what you can and cant mix 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 Dosage and Protocol: A Medical Provider's Guide to the 30 Day Cycle Perfect B Two Weeks on GHK CU by Rory Uphold The Ladies Room