Beta hydroxy acids (BHAs) are a type of exfoliant commonly used in skincare. The most well-known BHA is salicylic acid, which helps to remove dead skin cells and unclog pores. This makes BHAs particularly effective for individuals with oily or acne-prone skin, as they can penetrate deeper into the pores compared to alpha hydroxy acids (AHAs). BHAs also have anti-inflammatory properties, which can soothe irritated skin and reduce redness. 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.