Beta-hydroxy acids (BHAs) are a type of organic acid commonly used in skincare products. The most well-known BHA is salicylic acid, which is effective in treating acne and oily skin. BHAs work by exfoliating the skin's surface and penetrating deeper into the pores, helping to remove dead skin cells and excess oil. In addition to their exfoliating properties, BHAs have anti-inflammatory benefits, making them suitable for sensitive or acne-prone skin. They can help reduce redness and swelling, promoting a clearer complexion. Regular use of products containing BHAs can lead to smoother, healthier skin over time.