Lactic acid is a type of alpha-hydroxy acid (AHA) commonly used in skincare products, including exfoliators. A 50% lactic acid exfoliator refers to a formulation that contains a 50% concentration of lactic acid as the active ingredient.
Lactic acid exfoliators work by gently removing dead skin cells from the surface of the skin. They help to improve skin texture, promote cell turnover, and reveal smoother, brighter, and more radiant skin.