The HELIOCARE ULTRA-D Oral dietary supplement contains Polypodium leucotomos, vitamins C and E, as well as other antioxidants that help protect the skin from damage caused by free radicals. Vitamins C and E contribute to the protection of cells from oxidative stress, while vitamin C also contributes to the normal formation of collagen for the proper functioning of the skin. It also contains vitamin D, which contributes to the normal absorption and use of calcium and phosphorus, for the maintenance of normal bones and teeth and for the proper functioning of the immune system. Excessive sun exposure can cause allergic reactions and photosensitivity and is a direct cause of photoaging of the skin.