👉 An emulsifier is a substance that helps to bring two or more liquids together in a homogeneous mixture, typically at a desired temperature. It serves as an agent for dispersing and stabilizing the oils and fats, which are often used in various applications such as cooking, cosmetics, and foodstuffs. Emulsifiers can be classified into two main types: those that reduce the viscosity of the oil or fat and those that prevent the formation of a lipid film.