Nutritional Health Non-GMO A Dietary Supplement Vegetarian - Vegan Vitamins Family Owned Since 1968 GMP Quality Assured. Niacin (Vitamin B-3) is an essential B-Complex vitamin. Flush-Free Niacin contains Inositol Hexanicotinate, a form of Niacin that consists of six molecules of niacin linked to a single inositol molecule. It is slowly broken down in the body to yield free niacin and inositol. This gradual release of Niacin allows for true Niacin activity without the characteristic niacin flush that many people cannot tolerate. Niacin-Free contains inositol hexanicotinate, a form of niacin made up of six molecules of niacin linked to a single inositol molecule. It is slowly broken down in the body into free niacin and inositol. Because niacin is released gradually, niacin activation occurs without the characteristic niacin flushing that many people find uncomfortable. Take 1 capsule daily as needed. Ingredients: Hypromellose (cellulose capsule), Stearic Acid (vegetable source), Rice Flour and Silicon Dioxide. This product is not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. It wasn't. Produced in a GMP facility that processes other ingredients containing these allergens. Inositol hexanicotinate is a stable, non-flushing source of niacin. This excellent source of niacin reduces the common ‘niacin flush’ problem associated with high-dose niacin supplements. This product contains twice the amount of niacin (500 mg per capsule) as our regular strength product (250 mg per capsule). Caution: This product is for adults only. Consult your doctor if you are pregnant, nursing, taking medication, or have a medical condition (liver disease, stomach ulcers, diabetes, gout, etc.). Keep out of reach of children. This product may undergo natural color changes. Store in a cool, dry place after opening.