GLOW GHK CU 2% TOPICAL SERUMWorld's first serum to combine GHK Cu, NAD+, and NMN all at 2% therapeutic concentration 2% GHK Cu 40200 the concentration of standard peptide serums 2% Hyaluronic Acid carrier drives actives through the skin barrier 2% NAD+ and 2% NMN for epidermal antioxidant defense Apply to face, neck, or scalp skin and hair follicle benefits in one formula GLOW is the world's first serum to deliver GHK Cu, NAD+, NMN, and Hyaluronic Acid together at 2% each in a