Copper Peptide (GHK Cu) Supplier Cosmetic Ingredient for Formulators Creative Peptides 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 Copper Peptide Collagen Boost & Skin Regeneration Calibrate Hydration GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B Copper Peptide Serum with 1% GHK Cu peptide, Argireline and Matrixyl 3000