GHK CU Before and After Pictures Topical GHK Cu Skin Results, Face Serum Reviews & Photo Results Neurogan Health Wellness peptide craze: why people are injecting drugs 'not for human consumption' GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health 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 Peptide GHK CU Cream Concierge MD