Cu Peptide Before and After: What to Expect for Skin and Hair Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Biossance 6 month GHK CU check in Main takeaway: skin transformation takes time. GHK CU peptide binds to copper and activates genes involved in wound healing, collagen synthesis, and skin remodeling. On the face, this translates 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 Helloskin GHK Cu 1% Triple Peptide Regenerative Serum Amazon.com: Jkrova GHK Cu Copper Peptide Face Cream 4% Peptides Moisturizer for Fine Lines, Wrinkles, Firming, Deep Hydration & Collagen Support 2400mg GHK Cu for All Skin Types, 30g : Beauty