Other ingredients: cellulose, silica, stearic acid (vegetable source), calcium stearate (vegetable source).
To report a serious adverse event, call 1-833-992-3872. Flushing (warmth, redness, itching and/or tingling of the skin) is a common side effect of niacin supplementation that may subside after several weeks of consistent use. Flushing may vary in severity and is more likely to occur with initiation of supplementation, or during dose increases.