Vitamin B3 - Niacin one of the B Group Vitamins
Vitamin B3 Niacin - A B-Group Vitamin
Niacin (Nicotinic Acid) can cause a flushing sensation which passes quite quickly, drinking water helps to expedite this or alternatively try Vitamin B3 Nicotinamide, which does not cause this sensation.
100mg Vitamin B3 Nicotinic Acid (Niacin)
Rice Flour - Capsule Shell: 40mg Vegetable Cellulose