NMN (β-Nicotinamide Mononucleotide) serves as a direct precursor to NAD+ (Nicotinamide Adenine Dinucleotide), an essential coenzyme involved in over 500 enzymatic reactions, including cellular energy metabolism, DNA repair, mitochondrial function, and epigenetic regulation. As NAD+ levels naturally decline with age, supplementing with NMN offers a scientifically supported pathway to support cellular vitality and healthy aging.