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 Copper Peptides for Hair Loss: How GHK Cu Can Stimulate Hair Growth HapiPatch Copper peptides (GHK Cu) have been studied for decades for their role in tissue repair and that same biology applies to hair. Research shows GHK Cu may help strengthen existing hair follicles, reduce LINK IN BIO GHK Cu is a powerful copper peptide studied for its potential to support skin rejuvenation, wound healing, hair growth, and inflammation regulation, promoting overall skin, cell, and tissue vitality.