Salicylic acid is an oil-soluble beta-hydroxy acid (BHA) known for its exfoliating, anti-inflammatory, and antiseptic properties. It is used in cosmetics to unclog pores, combat acne, blackheads, and excess oil, and in medicine for the topical treatment of skin conditions such as calluses and warts. Salicylic acid helps renew skin, leaving it smoother and more even-toned, and is used both alone and as part of other products, such as salicylic alcohol.