Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care Morningstar Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an updateit's been 12 weeks since I started using GHK 10 Benefits of Copper Peptides (GHK Cu) Boosts collagen production firmer, youthful skin Improves skin elasticity reduces sagging Reduces fine lines & wrinkles Accelerates wound & scar healing Strengthens skin barrier