Best GHK Skin Cream GHK Benefits: Improve Skin Dramatically with Skin Biology Products Best Crepey Skin Cream Does It Work? Buy or Shop Skin Biology Products by Biochemist Dr. Pickart GHK Cu is a powerful copper peptide that supports collagen production, skin and hair health, and tissue repair. It may help reduce fine lines, improve elasticity, and promote faster healing. Want to learn GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect Skin can change when biology is supported, GHK Cu is a naturally occurring copper binding peptide thats been studied for its role in: Supporting collagen and elastin production, Improving skin Epigenetic mechanisms activated by GHK Cu increase skin collagen density in clinical trial EurekAlert!