What it is: Clinique Moisture Surge CC Cream Hydrating Colour Corrector Broad Spectrum SPF 30, $35, available in six shades.What it does: Moisturizes and protects with SPF while giving skin subtle coverage and enhancing its natural radiance.Why it works: You may want to sit down before reading thisâ€”your skin tone will change as you age. By our late 20s and early 30s, Asian skin becomes duller and yellower, Caucasian skin grows redder and blotchier, and darker skin tones get ashier. These tweaks are slow-going and fairly subtle, but the conscientious observer (that would be you) will notice that your skin is no longer the visage of luminescence that shined so brightly from your high school yearbook. That will bother you, and you will desperately seek something, anything, to help.Enter this CC Cream. Its secret brightening sauce is made up of dual-layered optics. The top layer is a translucent outer shell that scatters light to visually brighten your skinâ€”In a sense, it transforms your skin into a (very weak) incandescent light bulb. Nestled inside is the real trick: a lavender optic that performs the color correction. Since purple is a combination of blue and red, it has the power to combat all of the above skin tone changes, neutralizing redness, yellowing and ashy-ness all at once, while remaining completely invisible.Why you care: According to YouBeautyâ€™s Skin Age Quiz, 54 percent of quiz-takers described their skin as â€śnot as radiant as it used to be.â€ť This cream will kick that quick, for skin that, yes, shines bright like a diamond.