ZO Skin Health Instant Pore Refiner is a lightweight, oil-free serum formulated to instantly refine the appearance of pores and deliver a smooth, matte finish. This advanced dual-action treatment works to control surface shine while gently exfoliating around the pore channels to help prevent congestion and visible pore enlargement. Ideal for all skin types, especially oily or combination, this serum leaves your skin looking more polished and even-textured.