Clinique's two-pronged approach to lasting brightness and even tone. Our clinical-strength serum with CL-302 complex is proven to help reverse the appearance of dark spots and blemish marks starting in four weeks. Plus a soothing optimizer keeps skin calm, helping it better resist future darkening. Dispensed in ideal balance via a unique dual-chamber pump.How to Use Use twice a day, morning and night. Dispense 1 to 2 pumps onto fingertips. Spread serum all over your face and neck. Follow with moisturizer. Daily sunscreen is imperative.