GHK cu Copper Peptide: The "Glow" for Hair & Skin Seenergie PH Peptides for Hair Growth : r HairlossResearch I posted about GHK CU about two weeks ago and had a ton of people ask me questions about it in terms of how it works, but also asking about my personal experience. I am not done treatment yet, but in GHK Copper (GHKCu) is a naturally occurring tripeptide that acts as a potent signaling molecule for hair regeneration., How it works: GHK Cu enhances hair follicle health by promoting angiogenesis and