In the story of your life, your skin plays a starring role. It's the part of you that is most exposed to the world, so it sees everything- windy weather, ski trips, beach days, swim meets, sweaty workouts. It also shows everything, from dirt and stress to sunburns, wrinkles, dimples, and of course acne. And when you don't feel good about your skin, it can be hard to feel good about yourself. But taking care of your skin is easy—once you know what makes it tick.