Twinlab Niacin (B-3) 1000mg, 100 Capsules (Pack of 3)

What the brand says

Niacin, also known as vitamin B-3, is commonly found in fish and grains. It is important for energy production, and also helps keep the nervous system, digestive system, skin, hair and eyes healthy. Niacin assists in the conversion of food to energy. As a water-soluble vitamin, Niacin is not stored in the body and therefore requires continuous supplementation.