1,000mg – Lyophilized *MUST BE RECONSTITUTED* NAD+ is short for Nicotinamide Adenine Dinucleotide—a vital endogenous nucleotide that plays a key role in regulating metabolism, energy production, and DNA repair. Functioning as a secondary messenger through calcium-dependent signaling mechanisms, NAD+ is also believed to contribute to immunoregulation. Researchers highlight the natural synthesis of NAD+ through a de novo mechanism, involving the conversion of the amino acid tryptophan and five essential components. Once synthesized, NAD+ becomes a powerhouse, influencing over 500 enzymatic reactions and cellular processes to support metabolic activities. Acting as a coenzyme in redox functions, it transforms into NADH, contributing to various metabolic pathways.