NADH powder as known as reduction beta-Nicotinamide adenine dinucleotide. It's the reduced form of Coenzyme 1 NAD, and NAD+ is the oxidized form.As a donor of hydrogen and electrons, NADH participates in physiological processes such as photosynthesis, respiration and alcohol metabolism.https://www.haozepharm.com/human-pharma-raw-materials/others/nadh-powder.html