NAD+Max™  Each bullet contains 500mg of NAD+, 250mg of  NR (Nicotinamide Riboside) & 250mg of NMN (Nicotinamide Mononucleotide). Our Vertical Spray contains 2,000 mg. What is NAD+? Nicotinamide Adenine Dinucleotide (NAD) is a metabolic co-enzyme that structures, repairs, and is an essential component of energy production (mitochondrial function). It is also heavily involved in DNA repair and cell repair, responsible for turning certain genes on and off, and essential for maintaining neurotransmitter levels for the proper functioning of the brain.