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Niacinamide is one of the two forms of vitamin B3 (the other is niacin) and can be found in many foods including yeast, meat, fish, milk, eggs, green vegetables, beans, and cereal grains. Water-soluble form of niacin, an essential vitamin of the B group, known as vitamin B3. Purity 99-100 %, pH 6-7.5 (5% water solution). White powder, practically odorless. Easily soluble in water & ethanol, soluble in glycerol.