Specifically formulated with Activated C and Buffered Salicylic Acid, our potent brightening serum gently exfoliates skin's surface to renew skin's texture and the appearance of discolourations. Visibly reduces a broad spectrum of dark spots including those caused by age and UV exposure. Discover a radiant, more even-looking skin tone- Clinically Demonstrated up to 2X Reduction in Dark Spots. Helps visibly brighten the look of skin for a more even and radiant look Dermatologist-tested for gentleness on all skin types, including sensitive. Improvements in the appearance of Hyperpigmentation may also include the improved appearance of Post-Inflammatory Hyperpigmentation (PIH) and Post-Inflammatory Erythema (PIE). We always recommend pairing application of your targeted serum with an SPF product to ensure skin discolourations are fully protected from the sun's harmful rays. Expert grading in a 12-week clinical test on 113 subjects. Cleanse skin thoroughly prior to application. Apply dark spot serum over entire face both day and night under your ideal moisturiser. Kiehl's Clearly Corrective Dark Spot Solution Size: 50ml