Which ingredient is frequently used in products aimed at treating acne?

Salicylic acid is a well-known ingredient that is frequently used in products aimed at treating acne due to its unique properties. It is a beta-hydroxy acid (BHA) that penetrates pores deeply and helps to exfoliate the skin, removing dead skin cells that can clog pores and lead to acne. Salicylic acid also has anti-inflammatory properties, which can help reduce redness and swelling associated with acne lesions. Additionally, it helps to regulate oil production in the skin, making it particularly effective for individuals with oily and acne-prone skin.

While glycolic acid can also aid in exfoliation, it primarily works on the skin’s surface rather than penetrating deeply into the pores, making it less effective for treating existing acne compared to salicylic acid. Hyaluronic acid, on the other hand, is mainly used for hydration rather than acne treatment, as it attracts and retains moisture in the skin. Citric acid, while it has some exfoliating properties, is typically more associated with brightening the skin and addressing uneven skin tone rather than specifically targeting acne. Therefore, salicylic acid stands out as the go-to ingredient for effective acne treatment.