Beta Hydroxy Acids (BHAs) are a type of exfoliant commonly used in skincare. The most well-known BHA is salicylic acid, which is derived from willow bark. BHAs work by penetrating the pores and dissolving excess oil and dead skin cells, making them particularly effective for oily and acne-prone skin. In addition to their exfoliating properties, BHAs have anti-inflammatory benefits, helping to reduce redness and swelling associated with breakouts. They are often found in various skincare products, including cleansers, toners, and spot treatments, making them a popular choice for those looking to improve their skin's texture and clarity.