Flush-Free Niacin from Now Foods offers a unique non-flushing form of niacin (niacinamide) that supports energy metabolism and cardiovascular health without the flushing side effects often associated with traditional niacin. Niacin is a water-soluble B-vitamin that plays an essential role in the conversion of food into energy. It is also involved in the health of skin, nerve function, and cholesterol regulation. Now Foods formulated this product to ensure optimal potency and purity, making it an excellent addition to your daily supplement regimen.