COSRX Salicylic Acid Daily Gentle Cleanser is the best foaming cleanser for acne-prone and oily skin. The gentle cleanser is made with botanical ingredients and tea extracts that control sebum production, preventing breakouts for smooth and soft skin. This salicylic acid cleanser contains Willow Bark Water, a natural BHA ingredient that exfoliates away dead skin cells, removes blackheads and whiteheads to unclog pores, leaving behind a smooth complexion.