FADES ACNE MARKS: Niacinamide is an anti-inflammatory that works to regulate the amount of acne-causing oil being produced by the glands in your skin. In addition, it regulates skin tone and helps fade the red, purple and brown marks that acne can leave on the skin. FIGHTS ACNE: Niacinamide or Vitamin B3 has been clinically proven to help visibly improve large pores and prevent acne. Daily use will result in fewer lesions and improved skin texture.