The COSRX AHA/BHA Clarifying Treatment Toner is a powerful toner that is specially formulated to target acne-prone and congested skin. This toner contains a blend of alpha hydroxy acids (AHA) and beta hydroxy acids (BHA), which help to exfoliate the skin and unclog pores. It helps to remove dead skin cells and impurities, leaving the skin feeling clean and refreshed. The lightweight formula absorbs quickly into the skin, without leaving any residue. This toner also helps to balance the skin's pH level and improve the overall texture and clarity of the skin. With regular use, it can help to reduce the appearance of acne and blemishes, giving you a clearer and smoother complexion.