Current glow from my GHK CU nose spray and face cream combo. Zero filter, just a skin tint and some mascara and I am good to go. no more heavy coverage GHK Cu (copper peptide) used topically is one of the most well studied skin repair peptides. Here's how it helps the skin, in practical terms: 1. Boosts collagen & elastin GHK Cu signals your skin 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 Cellular Glow Copper Peptide GHK Cu Serum for Face GHK CU Cosmetic Dermatologist Dr. Jason Emer