Facial Care: Cleanser, Toner, Exfoliant (AHA or BHA), Mosturizer (Sun Block for AM/Hydrating Cream for PM)
I think people underestimate the place of a sun block in your skin care regimine.
Diet: Eat healthy and drink lots of waters and foods with antioxidants. Don't rely on vitamins or pills from a bottle. Invest in a blender.
These are some basic things to consider when thinking about good facial care.