Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule GHK Cu Peptide Therapy Collagen & Skin Renewal 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 Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care Alopecia Treatment Copper Peptide Conditioner Ghk Cu Conditioner