Providing gentle moisture to oily and blemish-prone skin types, the Neutrogena Hydro Boost 10% Niacinamide Serum nourishes the complexion with light, quenching hydration. Powered by 10% niacinamide, the formula visibly refines enlarged pores, reduces the look of redness and helps to balance skin tone over time. Hyaluronic acid supports the serum with its moisture-locking benefits to promote a smooth, supple finish, while glycerin delivers a cooling sensation and instant radiance with each use.