The Benefits Of NiacinamideNiacinamide. If it sounds familiar, that’s probably because it's been buzzy in the skin care world forever. A form of Vitamin B3, niacinamide is a nutrient that is required by the body to maintain healthy cells and helps turn the foods you eat into energy. But beyond its effects on your body from the inside, niacinamide has major benefits for your skin too. Read on to learn more about the ways this vitamin can help your skin care and whether it’s right for you!