Vitamin B3 (Niacinamide) is a food supplement based on vitamin B3 (niacin) that contributes to the normal functioning of the nervous system, to the normal psychological function. Niacin contributes to the normal functioning of the nervous system and normal psychological function. Niacin helps to decrease fatigue and tiredness. Niacin contributes to the maintenance of skin and mucous membranes under normal conditions. Niacin contributes to normal energy metabolism. It is recommended for adults and young people over 12 years old; it is advisable to take it with food. Stop taking the product or reduce the dose to half a tablet daily, in case of rash, itching, burning or redness of the skin.