Shine and luster are definite #skingoals, but too much shine caused by oil can clog pores and create unwanted blemishes. An overworked oil production can be caused by genetics, stress, hormonal swings, and even the changing of the seasons. Now you can achieve homeostasis without drying out your skin. Dr. Koo’s 4 types of BOOST essential hydration will calm and preserve your skin, thanks to an elegant combination of vital nutrients and humectants. You simply need to find the right type of moisturizer for your own unique needs.