Combination skin can be tricky, and isoi Moisture Dr. line is formulated for skin that is oily in some areas and feels dry in others. The moisture Dr. Ampoule is designed to boost long-lasting hydration for your thirsty skin without the heavy, greasy feeling. Made with five different hyaluronic acid and tea tree ceramide, this clean formula calms the stressed skin and fortifies the skin barrier, leaving skin looking healthy and radiant.