How often should chemical exfoliants be used on acne-prone skin?

Using chemical exfoliants on acne-prone skin 2 to 3 times a week is generally considered optimal because this frequency strikes a balance between effective exfoliation and minimizing irritation. Chemical exfoliants, which can include ingredients like alpha hydroxy acids (AHAs) and beta hydroxy acids (BHAs), help to remove dead skin cells, unclog pores, and reduce acne breakouts.

When used 2 to 3 times per week, these exfoliants provide enough opportunity for the skin to benefit from regular cell turnover without overwhelming it. This frequency helps to maintain skin's hydration and barrier function, which is especially important for those with acne-prone skin that can be reactive or sensitive.

In contrast, using chemical exfoliants once a month would not provide sufficient regular treatment to manage acne effectively, and daily use may lead to over-exfoliation, resulting in irritation, increased sensitivity, and potentially exacerbating acne symptoms. Thus, the recommendation of 2 to 3 times a week recognizes both the effectiveness of chemical exfoliation and the need for a careful approach tailored to acne-prone skin.