Having the right food or diet is important to enhance good and youthful skin. Beauty is also closely associated to internal and external factors.
Internal refers to your own genes or the types of food you intake.
External refers to things you do, what you apply or the exercise you do.
I'm more interested with the internal factors for beautiful skin. Studies have shown that high vegetables diet with lots of water (more than 2.4l) and fruits are the best. Choose fruits that are highly antioxidant, such as: kiwi, orange, grapes, plums, berries (all kinds), cherries or pomegranate. Also not forgeting to have high in-take of fibres.
Avoid acidic food(normally meaty stuff) and go for a more alkalin diet.
Sometimes, a little red wine helps. Good try.