Salicylic acid is a chemical compound derived from willow bark. It is used in the cosmetics and pharmaceutical industry for its exfoliating, anti-inflammatory and antibacterial properties. Salicylic acid is commonly used in skin care products to treat acne, blackheads, blemishes, and skin conditions such as warts and corns. It helps unclog pores, reduce inflammation, and slough off dead skin cells, promoting clearer, smoother skin. However, it should be used with caution, as excessive or improper use can lead to skin irritation. It is advisable to check the exposure limits in your country.