One a dayhelps to reduce tiredness and fatigue and maintain vitalitylloydspharmacy vitamin b complex food supplement 60 tablets this product contains a number of b vitamins niacin and vitamin b12 contribute to the reduction of tiredness and fatigue thiamin contributes to normal function of the heart niacin contributes to the maintenance of normal skin and vitamin b6 contributes to the regulation of hormonal activity vitamins b6 and b12 also contribute to normal function of