If old skin cells refuse to disappear on their own, it can lead to pimples, blackheads and increased redness. Not only can salicylic acid (also known as BHA, or beta-hydroxy acid) help remove the dead flakes, it also offers soothing, anti-inflammatory properties, making it an ideal ally in fighting acne and breakouts. Because of its molecular size, the acid penetrates less deeply than, for example, AHA and is therefore particularly well tolerated. Products containing BHA are especially suitable for oily and impure skin.
