Bioré baking soda range is ideal for combination skin. You have this skin type if your t zone your forehead and nose is oily and your cheeks are dry.baking soda is a powerful exfoliant found in nature. On its own, natural baking soda is an alkaline that can dry the skin. Bioré baking soda products take all the natural powerful cleansing and exfoliating properties of baking soda but they have been formulated precisely for use on your skin, so you get all the same benefits without damaging your skin. It will keep your t zone clear of enlarged pores and breakthrough shine without encouraging dryness and flakiness elsewhere on the face.