TATCHA The Dewy Serum contains Hadasei-3 complex, a fermentation of uji green tea, Okinawa Mozuku algae, and akita rice. The serum helps provide moisture to the skin. Brand New! In box! FRESH! In an expert grader analysis, with subjects using this product once: -- 100% showed an improvement in the feel of skin softness/suppleness immediately after application -- 100% showed an improvement in the appearance of skin texture immediately after application -- 100% showed an improvement in the appearance of skin radiance immediately after application -- 100% showed an improvement in the appearance of skin brightness immediately after application -- 100% showed an improvement in the appearance of temporary skin plumpness immediately after application