Skin care should be an important element of your wellness regimen. After all, it is your body’s largest organ. The first thing most doctors will encourage you to do to maintain your skin healthy is to limit your exposure to the sun’s damaging ultraviolet (UV) radiation and to apply protective sunscreen when you are outside. But the sun isn’t without its benefits. Just 10–15 minutes of daily exposure helps the skin produce vitamin D. Vitamin D, along with vitamins C, E, and K, is one of the greatest vitamins for your skin. Getting adequate vitamins can help keep your skin looking healthy and youthful. Essential skin vitamins can be obtained as supplements, but they can also be found in skin care products. Learn more about these four key vitamins and how they can aid with skin health. When sunlight is absorbed by your skin, it produces vitamin D. When this happens, cholesterol turns to vitamin D. Vitamin D is then absorbed by your liver and kidneys and transported throughout your body to aid in the formation of healthy cells. This includes the skin, where vitamin D is essential for skin tone. It may possibly aid in the treatment of psoriasis. Calcitriol is a synthetic form of vitamin D, which humans generate naturally. Calcitriol is a topical cream that has been shown to be useful in the treatment of psoriasis. A 2009 study published in the Journal of Drugs and Dermatology discovered that using calcitriol reduced skin inflammation and irritation in persons with psoriasis while causing little negative effects.