Which acid is typically chosen for acne treatment?

Salicylic acid is commonly chosen for acne treatment due to its ability to penetrate the pores and exfoliate the skin from within. It is a beta hydroxy acid (BHA), meaning it is oil-soluble, which allows it to dissolve excess sebum and debris that can clog pores and lead to breakouts. This property makes salicylic acid particularly effective for treating acne, as it targets the root cause of the condition by preventing the formation of comedones.

Additionally, salicylic acid has anti-inflammatory properties that can help to reduce the redness and swelling often associated with acne lesions. This dual action—clearing obstructed pores and decreasing inflammation—makes salicylic acid a preferred choice among dermatologists and skincare professionals for managing both mild and moderate acne.

In contrast, while glycolic acid, lactic acid, and tartaric acid are effective exfoliants, they are alpha hydroxy acids (AHAs) and primarily work on the surface of the skin rather than within the pores. Their benefits are more aligned with improving skin texture, hydration, and overall appearance, rather than specifically targeting acne-prone areas. Thus, salicylic acid stands out as the most suitable choice for treating acne effectively.