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 Ghk Cu Etsy GHK Peptide Dosage Chart PeptidesPower Copper peptide questions we get asked all the time How often should you use it? Do you need to avoid the sun? If you're new, start once daily (evenings are great), Ghk Cu Intra Nasal Spray 50 mg 0.34 oz. Westend Medical Supply GHK CU Cosmetic Dermatologist Dr. Jason Emer