[Serum] This product contains 19 kinds of extracts from 17 kinds of plants, including extracts from sweet tea vine, sudachi, yuzu incense*, and sap of mountain grape. A wealth of useful plant ingredients that address various skin concerns penetrate into the keratinized skin layer to soften and condition stiff skin. It is an oil-free type with a fresh texture. Complex medicinal herb-like aroma with sweetness and bitterness from multiple plants. *Yuzu Kou: A type of citrus fruit that is a natural hybrid of yuzu and orange.