The fruit’s red pigment, lycopene, is a potent antioxidant that shields skin from sun damage—like sunscreen, but from the inside out. To best absorb lycopene, eat tomatoes with olive oil.
Vitamin C is essential to building collagen, a vital component of young-looking skin, which starts breaking down in your twenties. Citrus also contains bioflavonoids, which protect skin from UV rays and help prevent cell death.
4. Leafy Greens
Spinach, kale, and other greens contain lutein, which protects skin from sun-induced inflammation and wrinkles.
The pigment that makes the fish pink, astaxanthin, is powerful in preventing free radicals, rogue molecules that damage cell membranes and DNA and cause skin to age. A study found that eating one serving every five days can prevent actinic keratoses—ugly rough patches that are precancerous.