- Nicotinamide (also known as niacinamide) is chemically similar to niacin and, like niacin, is a form of vitamin B3. Nicotinamide and niacin are found in many foods, including vegetables, fruits, grains, meats, milk, and eggs.
- Nicotinamide is approved by the U.S. Food and Drug Administration (FDA) for the prevention and treatment of pellagra, a vitamin B3 deficiency disease characterized by diarrhea, dermatitis, neurodegeneration, and dementia.
- Nicotinamide has been investigated for the prevention of type 1 diabetes. It is included in skin care products for the treatment of acne and UV-induced immune suppression, and in products intended to enhance appearance.