Niacinamide is a form of vitamin B3 that delivers the benefits without the skin flush that niacin causes. Your body uses it to turn food into energy and to support cellular repair.
People take it to keep skin clear, manage signs of aging, and ease joint discomfort from osteoarthritis. Doses around the RDA cover basic nutrition, while 250 to 500 mg daily targets specific skin and joint goals.
High doses of 3 grams or more per day can harm the liver. Check with a doctor before using large amounts, especially if you have liver concerns or take diabetes medication.