Nicotinamide (NAM) is a form of vitamin B3 found in food and used as a dietary supplement and medication. As a supplement, it is used by mouth to prevent and treat pellagra (niacin deficiency). Niacinamide Crystalline Powder is a form of vitamin B3 that is commonly used in skincare products due to its ability to improve skin texture, reduce inflammation, and minimize the appearance of fine lines and wrinkles. It is also used in the food industry as a nutrient supplement and in the pharmaceutical industry as a treatment for various medical conditions. Its versatile applications make it a popular ingredient in many products.