Feeling exhausted? Crank up your energy levels throughout the day with NADH, a natural dietary supplement that has shown in numerous clinical trials to relieve fatigue effectively and naturally. Researchers have known NADH (nicotinamide-adenine-dinucleotide-hydride) for more than 60 years and in that time have found that this natural coenzyme derived from vitamin B-3 plays a key role in the production of cellular energy. Simply put, the more NADH a cell has, the more energy it can produce. Furthermore, NADH supports the natural synthesis of vital neurotransmitters in the body, making it a particularly effective means of combating mental fatigue and maintaining a positive mental state. It is a wonderful tonic supplement that will increase your mental and physical vigour.