Clinique's most powerful brightening serum helps visibly improve discoloration, such as acne marks, while interrupting the look of future dark spots. 94% demonstrated an improvement in radiance and visible skin tone, including acne  marks, in 8 weeks. See a 39% visible reduction in dark spots in 12 weeks.**Clinical testing on 52 women. What it is:Clinique's "Damage eraser" serum with cl302 brightening complex™ delivers dramatic brightening results—yet is still gentle enough for all skin types, including sensitive skin. What it does:Features our proprietary brightening molecule and vitamin c for a more even-looking skin tone, including acne  marks. Plus improves the look of existing dark spots, including age spots, while interrupting the look of future dark spots, too. How to use:Use serum twice a day, morning and night. Dispense 1 to 2 pumps onto fingertips. Spread serum all over your face, avoiding eye area. Follow with moisturizer. Daily sunscreen is imperative. Apply in the am after your moisturizer. Use with: Even better clinical™ brightening moisturizer