LAUSR

While Glycolic and Lactic acid peeling agents have equivalent results, the following shows that lactic acid peels have many benefits over glycolic acid peels. Glycolic Acid is the most commonly used AHA. Because of its small molecular weight and size, it is presumed to have a better capacity to penetrate skin. Lactic acid on the other hand, has a larger molecular weight than glycolic acid but is capable of being converted into pyruvic acid (an alpha keto acid) which is presumed to be a more effective exfoliating agent.