Niacinamide and Vitamin C Brightening Serum Set (60 Pieces)Brightening and Niacinamide Skin Serums (60 x 2ml) 2ml * 30 pieces Niacinamide Niacinamide, also referred to as vitamin B3 and nicotinamide, is a water soluble vitamin that collaborates with the natural substances present in the skin to visibly reduce enlarged pores and tighten lax or stretched out pores. Additionally, it can improve uneven skin tone, soften fine lines and wrinkles, diminish dullness, and strengthen a weakened skin barrier. 2ml * 30