This product by Swanson containing niacin will have all the beneficial effects of the standard niacin on your cardiovascular system. The difference is that you will not get that unpleasant flush. This product eliminates the flush effect you get when taking regular niacin thanks to the special form of vitamin B3, also known as inositol hexaniacinate. Each capsule contains 500 mg of niacin from inositol hexaniacinate. Other ingredients: gelatin, magnesium stearate, silica. Recommended use: As a dietary supplement, take one capsule three times a day with food and water.