GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect 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 Hair loss drugs: What are the alternatives? Nurtural Wholesale GHK Cu Copper Peptide Hair & Scalp Serum for your store Faire GHK CU Hair Loss & Regrowth Treatment Therapy Vitality Health GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect