Antioxidants has Anti-Wrinkle properties.

[Terrikrol]

Anti-oxidants have properties to fight against free-radicals and help prevent skin from damage.Thus they prevent the skin from wrinkles.
The most effective source of antioxidants is fresh fruits and vegetables along with Vitamin C & E rich fruits.If you don't have time to take in good amount of fruits and vegetables than supplements of Vitamin should be taken.

[Starchild47]

This is very true and there are some new foods that have been found now called super foods that are supposed to be very high on the anti-oxidant scale. I posted about the acai berry in the forum above. There are some other super foods that have similar properties like flax seed and nettle as well.