The COSRX AHA/BHA Clarifying Treatment Toner is a popular choice for Amazon Prime Day. This toner is formulated with natural acids, including AHA and BHA, which help to exfoliate and clarify the skin. It is suitable for all skin types, especially those with acne-prone or congested skin. The toner helps to remove dead skin cells, unclog pores, and improve skin texture. It also helps to brighten the complexion and promote a more even skin tone. With its effective exfoliating properties and positive reviews, this COSRX toner is a great addition to your skincare routine.