Copper Peptides Serum for Face 2% GHK CU & 4% EGF Seraphime Good skin starts with the right ingredients. We made the GHK Cu Peptide Serum for people who want real results without the clinical experience. Copper peptides, hyaluronic acid, niacinamide and more, in one Cellular Glow Copper Peptide GHK Cu Serum for Face Natural Copper Peptide Serum Booster GHK Cu Copper Peptide Neck & Face Serum Same GHK Cu. Better way. Same GHK Cu copper peptide complex. Completely different experience. If you've been eyeing the pen, put it down. We made something better, and your skin barrier will thank you