Five different acid types in one serum — glycolic, lactic, malic, tartaric and salicylic — each working at a different skin level and through a different mechanism. That is why this peel refines the skin surface more thoroughly than single-acid products. Five moisture-binding agents — urea, betaine, glycerin, sodium lactate and sucrose — ensure skin feels soft after exfoliation, not stripped. Use 2–3 times a week in the evening — always apply sun protection the following morning.