You should not underestimate the role of having a healthy balanced diet when it comes to youthful looking skin. A diet that is highly rich in fresh fruits, vegetables and whole grains can go along way in keeping you wrinkle free and helping you anti age.
You should also be drinking atleast 4-5 litres of water each and everyday, this is the easiest way to keep your body hydrated which helps you to keep your skin moisturized from within.