GHK CU Hair Serums Explained: Real Results for Thinning Hair and Scalp Revival Topical GHK Cu: Skin Benefits, Best Forms, and Where to Buy AHK Cu + GHK Cu Hair Serum Pro 4800mg Hair Growth Neurogan Neurogan Health GHK Cu Copper Peptide Benefits, Uses & Safety Intra V 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 Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect