What is a common side effect of topical acne treatments?

Skin irritation and dryness are indeed common side effects of topical acne treatments. Many of these products contain active ingredients like benzoyl peroxide, salicylic acid, or retinoids, which work effectively to reduce acne by exfoliating the skin, unclogging pores, and reducing inflammation. However, these same ingredients can also disrupt the skin's natural barrier, leading to increased sensitivity, irritation, and dryness. It's important for those using topical treatments to be aware of these potential effects and to follow a skincare regimen that includes hydration to help mitigate dryness and irritation.

The other options do not typically correlate with topical acne treatments. Weight gain is generally associated with systemic medications rather than topical applications. Excessive oil production is not a common side effect of most topical treatments; instead, many aim to reduce oiliness. Increased hair growth is more related to hormonal treatments and is not a common effect of topical acne therapies.