We love when September rolls around because with it comes one of our favorite days—National Coffee Day! Whether you take it black or you’re a triple-soy-latte-no-foam kinda gal, we can all agree on the magical effects we get from a good boost of caffeine. But did you know caffeine is also a pretty handy addition to your beauty routine? If you’re like us, and just the thought of another use for this sweet nectar gets you buzzing, then read on. You’re in for a treat.