Carrots contain the carotenoids beta carotene and lycopene—both of which may shield your skin against UV damage. In one study, participants who were exposed to UV light had almost 50 percent less skin reddening after they drank about 1 2⁄3 cups of carrot juice or ate 2 1⁄2 tablespoons of tomato paste daily, in addition to their regular diet, for 10 to 12 weeks.