Vitamin A

Preventing vitamin A deficiency is important to preventing acne.
Vitamin A, used in acne treatments, helps to stimulate the growth of new skin cells.
It is much more useful to put vitamin A on your skin than to try to consume additional vitamin A to nourish your skin from the inside out.
Vitamin A in various forms is the most common treatment for acne. Accutane, Retin-A, and Differin are actually synthetic forms of this vitamin used to stimulate rapid growth in the skin