COSRX AHA/BHA Clarifying Treatment Toner (150ml) is a gentle exfoliating toner formulated with AHA, BHA, and purifying botanical ingredients to improve skin texture, control pores, and refine skin tone. It helps to remove dullness and dead skin cells, making way for newer, healthier skin. The toner is suitable for daily use on all skin types and can be used as a toner mask for hydration.