GHK Cu Peptide Benefits (And a Few Risks) Explained Copper Peptide Hair Growth Treatment Serum, GHK Cu and AHK Cu, Licorice Extract,1oz Haircare Comfort TikTok Shop GHK Cu Copper Peptide Hair & Scalp Serum GHK Cu is one of the most talked about peptides in aesthetics right now. But how much of what you have heard about it is actually true?, Copper peptide, known as GHK Cu, has a growing body of peer GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution