Neurogan Health, 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 (Copper Peptide): The Blue & Gold Secret #ghkcu #peptides Cu Peptide Before and After: What to Expect for Skin and Hair Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care Morningstar