GHK Cu for hair growth does it actually work? Short answer: no. GHK Cu can be great for skin but when it comes to hair growth, the evidence just isn't there. And this GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health GHK Cu vs AnagenX: Which Peptide Approach Supports Hair Growth Best? Absolute GHK cu Stem Cells & Peptide Hair Growth Serum and Shampoo MTS Mall of California Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care Wholesale GHK Cu Copper Peptide Hair & Scalp Serum for your store Faire