The thing about average spot treatments is that they're problem-solvers. But the La Roche-Posay Effaclar Duo ($37) prevents blemishes before they become a problem in the first place. This formula includes 5.5 percent micronized benzoyl peroxide, which has similar blemish-blasting effects as standard benzoyl peroxide but with less redness and dryness. Lipo hydroxy acid (LHA) is the second member of the acne prevention duo, and this key ingredient exfoliates six times better than salicylic acid. Apply this product morning and night all over your face to diminish the number of breakouts. And in one week hopefully your biggest worry will be limited to which lip color will match your outfit that day.