Copper Peptides for Hair Loss: How GHK Cu Can Stimulate Hair Growth HapiPatch GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia If youre on a GLP 1 and starting to notice changes in your skin or hair youre not alone., Copper peptides (GHK Cu) are a simple way to support your body through the process , Boost collagen, Most people think GHK Cu works because it's a skin peptide. That's surface level thinking. #GHK Cu doesn't start with wrinkles, scars, or hairlines. It starts with cellular repair signalling. GHK Cu is a copper peptide