• Boost NAD+ Levels with GNC Preventive Nutrition® NMN: Every capsule is formulated with 150mg NMN to support NAD+ production, essential for energy and DNA repair. • Promote Cellular Energy: NMN is a direct precursor to NAD+, helping maintain cellular health and ATP production. • Help Repair DNA: NMN is naturally occurring in the body and produces NAD+, which helps with DNA repair and supports healthy DNA. • Science-Backed Formula With High-Quality NMN: Get a precise, 150mg dose of β-Nicotinamide Mononucleotide, made in the USA with globally sourced ingredients. • Easy Daily Routine With Just One Capsule a Day: GNC Preventive Nutrition® NMN is unflavored and simple to use—take one capsule daily with food to support your wellness goals.