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 The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds, Peptide Therapy in Brandon & Lakeland, FL BPC 157, TB 500 & GHK Cu One of those things I didnt expect to help this much Our doctor recommended this vitamin for our son with autism + ADHD because the skin picking and nail biting had gotten so severe. He was biting