The Ordinary - 100% Niacinamide Powder - 20gNiacinamide, also known as Vitamin B3, is a well studied, multi faceted active ingredient that is renowned for its multiple benefits on the skin. It contributes to balancing visible sebum activity and supporting the production of components that play a central role in the structural and functional integrity of the skin. 100% Niacinamide Powder from offers the most direct topical exposure of Niacinamide to target visible shine, enlarged pores and