Paula's Choice Skin Perfecting 2% BHA Liquid Exfoliant is a cult-favorite facial serum that helps unclog pores and improve skin texture. It contains salicylic acid, a beta hydroxy acid (BHA), which exfoliates the skin and helps remove dead skin cells. This serum also helps reduce blackheads, whiteheads, and blemishes, making it ideal for those with acne-prone skin. With regular use, it can help reveal smoother, clearer, and more radiant skin.