VITAMIN A. Otherwise none as retinoids, vitamin A is a fat-soluble vitamin that is not present in the body. It is important not only to general health systems, but also for the skin.  You will find it present in these foods: Liver, oils, egg yolk, milk and various vegetables. Vitamin A should be applied topically in order to perform its essential purposes. The sun depletes the skin of vitamin A, thus why people who tan age faster than those who don’t. Good skin care products will contain vitamin A in their formulas due to its significance in preventing and healing sun damage. Vitamin A will prevent, restore, normalize and help repair damaged skin. You will find it listed on your labels as: retinyl palmitate, retinyl acetate and retinol, along with the more traditional perscription form, retinoic acid. When using vitamin A enhanced skin care products you must always remember to apply sunscreen.