Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care In an adult with pattern hair loss or diffuse thinning and no known copper allergy, what is the recommended firstline topical peptide (copperpeptide, GHKCu) regimen? Hair Loss: Compounded Medical Solutions For Men and Women Copper Peptides Before and After Hair: What to Expect Month by Month HapiPatch Does GHK Cu Regrow Hair? Here's What the Research Shows Absolute GHK cu Stem Cells & Peptide Hair Growth Serum and Shampoo MTS Set