Ammonium Lauryl Sulfate (ALS) is an anionic surfactant commonly used in personal care and cleansing products for its effective foaming and cleaning properties. It helps remove oils, dirt, and impurities while producing a rich, stable lather, making it a popular ingredient in shampoos, body washes, and liquid soaps. ALS is valued for its compatibility with a wide range of formulations and its ability to enhance product performance.