Niacinamide is a popular form of Vitamin B3, but without the often uncomfortable feeling known as "Niacin Flush". Vitamin B3 is most often found in meats like tuna and beef. However, in order to get a similar amount of Vitamin B3, you would have to eat large amounts of tuna and beef or other sources containing Vitamin B3. Niacinamide Fill in the gaps in your nutrition! Niacinamide is one of the two forms of Vitamin B3. Niacinamide is the version that does not cause what is commonly referred to as the "niacin flush." Each capsule of Nutricost Niacinamide contains 500 mg of potent, high quality Niacinamide in each serving. These capsules are non-GMO, Soy-free, and gluten free. Potent & High Quality Niacinamide (Vitamin B3) Made in a GMP Compliant Facility 500mg of Niacinamide Per Capsule. 240 Servings Per Bottle 240 Capsules Per Bottle