Infused with highly bioactive malic acid, this ingredient gently exfoliates dead skin cells, bidirectionally activates HAS3 (hyaluronan synthase 3) to form a hydrated gel microenvironment, regulates the oil-water balance of the active epidermis, and alleviates skin dryness and roughness. It simultaneously upregulates barrier function proteins and promotes the orderly arrangement of the stratum corneum.