Lauryl Lactyl Lactate (L3), also known as Koplactylate, is a naturally-derived, multi-functional ingredient used in personal care and cosmetics. It acts as an emollient, surfactant, and emulsifier, improving texture, stability, and feel in products like creams, lotions, shampoos, and conditioners. L3 is derived from lauryl alcohol and lactic acid through esterification.