Clinique's two-pronged approach to brightness and even tone. When skin is stressed, it overproduces melanin. This will surface as a dark spot. Our Optimizer was developed to help quell that irritation and help prevent new dark spots from forming. Clinique Even Better Clinical Dark Spot Corrector + Optimiser 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. The results you will see from using the Clinique Even Better Clinical Dark Spot Corrector + Optimiser consistently: -Brighter skin in one week. -A 1-2 shade improvement at 4 weeks. -A 58% visible reduction in dark spots at 12 weeks. 30ml.