Eat nuts and fish

Both create oils that are good for cleaning out the bad oils that come from both your environment and from that hamburger you ate last night. Specifically, almonds have the calcium and magnesium in them that your body needs to protect your skin from the harmful effects of your environment. Soy milk is pretty amazing for that as well. The omega-3s in Salmon alone help keep your hair shiny, you nails and teeth strong, and your skin clear.