According to science, there is real wisdom in the idea of sleeping to get one's beauty rest. While you sleep, your body enters a period of rejuvenation and restoration, and it's during this time that your skin cells actively work to repair damage done to your complexion by free radicals and sun exposure. During the day, you need full protection against the elements. As you age, the cumulative effects of damage over the course of your lifetime become too great for your body's natural repair mechanism to fully combat, which is what leads to lost elasticity and wrinkles. The philosophy full of promise skin care collection is designed to amplify your cellular repair ability to treat visible signs of aging on your complexion.