Now Foods Niacinamide 500mg, Vitamin B-3 Capsules, 100-CountBrand: Now Foods Features: Vitamin B 3, No Flush Niacinamide and Niacin are two different forms of Vitamin B 3. Niacinamide does not cause a Niacin flush. Binding: Health and Beauty model number: NOW755 Part Number: NOW755 Details: Niacinamide (Vitamin B 3) is a form of Niacin, a water soluble B Vitamin. It is a derivative of Niacin that does not cause the "flush" normally associated with taking high doses of Niacin. Niacinamide is readily converted