Fight Crow's-Feet with Peppers. "Women who eat green and yellow vegetables regularly tend to have fewer wrinkles, especially around the eyes," Dr. Wu says. Also, studies found that carotenoids -- the antioxidants in yellow and orange veggies -- can decrease skin's sensitivity to the sun, Dr. Bank says. Aim for about two cups of peppers daily.

Brighten Up with Sunflower Seeds Loaded with vitamin E, sunflower seeds keep your skin supple by protecting its top layers from the sun. Eat a handful daily. A high essential-fatty-acid content makes sunflower seed oil a treat for parched body parts, such as lips and heels, when topically applied, Dr. Bank says. Fight flakes with Dr. Brandt Lineless Lines No More for Lips ($30, drbrandtskincare.com).