COSRX Two in One Poreless Power Liquid is a dual-action essence-toner designed to minimize the appearance of pores and control excess sebum. Formulated with 88% willow bark water and 0.1% betaine salicylate (a gentle BHA), it provides mild exfoliation to clear congested pores and smooth skin texture. Tannins act as natural astringents, tightening pores and reducing their visibility. This lightweight, fast-absorbing liquid is suitable for all skin types, including sensitive skin, and is free from alcohol and artificial fragrances.