Sodium Lauryl Sulfate (SLS) or Sodium Dodecyl Sulphate (SDS) is a widely used anionic surfactant known for its excellent foaming, cleansing, and emulsifying properties. It is a white, odorless, and water-soluble compound with the chemical formula C??H??NaO?S. Derived primarily from natural sources such as coconut oil or palm kernel oil, SLS is commonly found in a variety of household and personal care products, including shampoos, soaps, toothpaste, body washes, and cleaning agents. Its ability to lower surface tension makes it effective in removing dirt, oil, and impurities from surfaces and skin. Additionally, SLS is used in industrial applications such as detergents, degreasers, and paints, as well as in laboratory settings for protein solubilization and cell membrane disruption.