Healthy skin not only offers aesthetic benefits, it helps regulate your body temperature and provides a layer of protection against infectious agents. A healthy diet helps ensure your skin can function at its best, and drinking pomegranate juice provides the energy, carbohydrates, proteins and fats that your skin and other tissues need to maintain themselves. Pomegranate juice also serves as a source of minerals and vitamins, including several nutrients that offer cosmetic and other benefits for your skin.