OBAGI NU-DERM CLEAR FX OVERVIEW A skin-brightening cream formulated with arbutin to help improve the look of skin for an even, healthy-looking complexion. Obagi Nu-Derum Clear Fx is a brightening cream specially formulated with natural arbutin and antioxidants to improve the look of even skin tone for all skin types. KEY INGREDIENTS ARBUTIN - Nature-identical skin brightening agent and antioxidant. This key ingredient can help to prevent and visibly diminish the appearance of uneven skin tone, leading to a more even complexion. HOW DO I USE OBAGI NU-DERM CLEAR FX? Apply affected area twice daily or as directed by a physician.