Solgar Niacin (Vitamin B3) 100 mg (100). Solgar Niacin (Vitamin B3) 100 mg is to be taken as 1 a day and comes in tablet form, contributing to:. Normal energy-yielding metabolism. Normal functioning of the nervous system. Normal psychological function. Maintenance of normal mucous membranes. Maintenance of normal skin. Reduction of tiredness and fatigue
