The COSRX AHA/BHA Treatment Toner is a mild facial exfoliating spray formulated with alpha hydroxy acids and beta hydroxy acids to help address whiteheads, enlarged pores, and uneven skin texture. AHA works on the skin’s surface to loosen dead skin cells and promote a smoother complexion, while BHA penetrates into pores to clear excess sebum and debris. This combination aims to refine pore appearance and improve overall skin clarity over consistent use. The product is dispensed as a fine mist, allowing even coverage without the need for cotton pads, which can reduce product waste and irritation from friction.

This Korean toner is free from parabens and sulfates, and the brand does not test on animals. Its pH-balanced formula is designed to be gentle enough for daily application as part of a standard skincare routine, particularly suited for those with oily, combination, or blemish-prone skin. The lightweight, spray format makes it convenient to apply on clean, dry skin before moisturizer. It does not contain added fragrances or harsh stripping agents, supporting a balanced skin barrier during exfoliation. Because the formula includes active acids, integration of sun protection during daytime use is recommended. The toner offers a straightforward approach to maintaining smoother skin and more even tone without aggressive peeling or drying effects. With a 150 ml / 5.07 fl.oz capacity, the bottle provides a practical quantity for regular incorporation into a skincare regimen. No dramatic transformations are promised; the focus remains on gradual, manageable improvement for those seeking a mild exfoliating toner.