Prescription Only Skin Rejuvenation Cream I've been using this since December to make sure it is as good as they say it is.and it definitely is! This is NOT an over the counter Amazon.com: Neurogan GHK Cu Copper Peptide Face Cream 4% Peptides for Skin Firmness & Deep Hydration Daily Facial Moisturizer with 2400 MG GHK Cu, 2oz : Beauty & Personal Care Copper Peptide Eye Serum 2%, GHK CU, 300 MCG, 1oz Tunisia Ubuy 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 Revitalize Your Skin: The Benefits of Copper Peptide for Youthful Glow