Strawberries

Strawberries have more anti-aging vitamin C per serving than oranges or grapefruit. And research published in the American Journal of Clinical Nutrition shows that people who eat foods rich in vitamin C have fewer wrinkles and less age-related dry skin than those who don’t.

Vitamin C fights free radicals, which damage cells and break down collagen, leading to fine lines. For smoother, better-hydrated skin, apply a natural berry mask once or twice a week, and eat vitamin C–rich foods daily, says Ramona Ionescu, primary aesthetician at New York City’s Cornelia Day Resort.