Kiehl's Clearly Corrective Dark Spot Solution 115mlBoost radiance and improve overall skin clarity with this targeted dark spot corrector, to help correct dark spots and general skin discolorations. Formulated with activated C, (Kiehl's vitamin C derivative), this gentle serum visibly brightens and evens skin over time, resulting in a clear, radiant complexion. Safe for all skin types, including sensitive. This formula uses Active C instead of traditional Vitamin C because Active C is more stable,