The AHA/BHA Clarifying Treatment Toner by CosRX is a multi-functional toner that helps to exfoliate and clarify the skin. It contains a combination of AHAs and BHAs to gently remove dead skin cells, unclog pores, and improve skin texture. The toner is fragrance-free and non-comedogenic, making it suitable for acne-prone skin. It is important to note that this toner does not provide specific benefits for hydrating, soothing, or anti-aging purposes.