Copper Peptides Serum for Face 2% Copper Peptide with 4% Epidermal Growth Factor (EGF Serum) Niacinamide Ceramides Squalane & Hyaluronic Acid Multi Ghk cu Peptide Face Serum NEW Cobalt Blue Bottle 2 Oz Etsy UK Let's talk about GHKU CU GHK Cu: The Regenerative Glow Peptide GHK Cu (Copper Peptide) is a naturally occurring peptide in your body that plays a powerful role in cellular repair, skin Real results with GHK Cu Copper Peptides., This serum visibly fades acne scars and dark marks, rebuilds collagen, firms skin, and delivers deep hydration that plumps instantly., Dermatologist tested.