Cellular Glow Copper Peptide GHK Cu Serum for Face Transform Your Skin: GHK CU Before & After Results GHK Cu, the copper peptide, is a game changing injectable for radiant skin and so much more Here's what it can do: Boost collagen for smoother, firmer skin Anti aging Before vs. after 3 months of GHK Cu peptide therapy smoother texture, more even tone, and skin that looks healthier overall. Small peptide, big difference Ghk Cu Facial Rejuvenation A GHK CU Blue Copper Peptide Serum Concentrate Ampoule Anti Wrinkle Firming Moisturizing Elasticity Acne Treatment Skincare Alibaba.com