Advanced GHK Cu Face Cream 2400mg 4% Firmer Skin Neurogan Neurogan Health 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 What volume of sterile, bacteriostatic water should be used to reconstitute a 50mg vial of GHK Cu (Glycyl Histidyl Lysine Copper) peptide for cosmetic or dermatological use? How long will a 50 mg supply of GHKCu last when dosing 2 mg daily for five consecutive days followed by two days off each week? Copper Fusion Cream