No-Flush Niacin, 500 mg, 30 Tablets - Source NaturalsSource Naturals NoFlush Niacin, 500 mg, 30 Tablets, provides a form of niacin that does not cause the typical "flush" associated with niacin supplements. This product uses inositol hexanicotinate, which allows for the benefits of niacin without the flushing effect. Niacin is crucial for the activities of various enzymes involved in the metabolism of carbohydrates and fats. It supports the functioning of the nervous and digestive systems, the