How GHK Cu Strengthens Hair Follicles to Combat Hair Loss HapiPatch GHK Cu Copper Peptide Hair Tonic for Fuller Looking Hair 12 Week Supply (30 mL) GHK Cu is one of my personal favorites for a lot of reasons, but I can say without a doubt that it's use effectively stopped and reversed, my receiving hairline. However, there are How to Maximize GHK Cu Peptide Results with Micro Infusion Celebrity Esthetician Secrets