Free of: Sugar, Soy, Dairy, Yeast, Gluten, Corn & Additives.,Niacinamide, also called nicotinamide, Vitamin B3 and/or nicotinic acid amide, is a water-soluble member of the family of B vitamins. There are two commonly used forms of Vitamin B3: niacin and niacinamide. The chemical difference between the two forms is that niacinamide has an amide group attached to the basic niacin form.Both are readily absorbed from the small intestine but have different effects on the body. Both compounds can be converted into NAD and subsequently NADH, playing key roles in energy metabolism. In small amounts (less than 100 mg), niacin and niacinamide can be used interchangeably, however in larger amounts they do have different actions on the body. Niacin is important in the balance of good (HDL) and bad (LDL) cholesterol in the bloodstream. Niacinamide acts more to promote a healthy insulin response and to maintain joint health.