Niacin helps maintain healthy function of the nervous system, digestive system, skin energy.This product has been manufactured and packaged in strict confromance with industry and government standerds.DIRECTIONS Adults take one capsul daily, preferably with a meal. Do not exceed one capsule per day. As a reminder, discuss the supplements and medications you take with your health care providers.NOTICE Most people should not experience flushing when using this product. However, a few sensitive individuals may experience some flushing. Do not take on an empty stomach.