Prevent aging skin while still young I'm 21 and I want to prevent aging before it happens.?

I'm assuming you are referring to skin aging and one of the best ways to prevent it is by using sunscreen. Harmful UVA and UVB rays are the cause of wrinkles and age spots on your skin, not to mention they UVA rays can cause cancer.

For more info: http://911skin.com/uvbubarays.html