Here's a fun and easy way to learn a little bit more about your skin type: the Skin Cancer Foundation has come up with a short Facebook quiz to help you determine which celebrities are your "skin twins," or have undertones and sun care needs most like yours.
The quiz uses the Fitzpatrick skin sensitivity scale to determine your skin type. (Fitzpatrick isn't our preferred measure, because it doesn't offer as many options for deeper skin tones, but it's still the industry standard.) After you answer a few questions, it then tells you which stars have skin that resembles yours, along with info on what you should be doing to protect yourself from skin cancer risk. It only takes a few seconds to fill out, and who doesn't want to be told that she has something in common with Penelope Cruz?