Nicotinamide ribose (English abbreviated NR) is an important precursor of coenzyme, also known as vitamin B3. This is the coenzyme nicotinamide adenine dinucleotide (NAD+, also known as coenzyme I), is a kind of a proton (hydrogen ion is more accurate) coenzyme, it appears in many metabolic reactions in cells. The decomposition of protein, carbohydrate and fat in compounds, the life activity of human body cannot do without this. With the aging of cells or lesions, it will reduce the number of. So, supplement can improve the coenzyme nicotinamide ribose, (NAD+) the basic content, improve the metabolic activity of the cells, thereby significantly improving the cell vitality, improve the physiological function of the human body various aspects.