Magnesium lauryl sulfate is primarily used in the formulation of personal care and cosmetic products. It acts as a surfactant, helping to reduce surface tension and allowing for effective cleansing by removing dirt, oil, and impurities from the skin and hair. This compound is commonly found in shampoos, body washes, and facial cleansers, where it contributes to the creation of a rich lather, enhancing the user experience. Additionally, it is used in toothpaste and other oral care products to aid in the dispersion of ingredients and improve cleaning efficacy. Its mild nature makes it suitable for use in products designed for sensitive skin.