Iodine contributes to the normal production of thyroid hormones, normal thyroid function and the normal functioning of the nervous system. Zinc helps maintain normal testosterone levels. Manganese supports the normal formation of connective tissue. Copper contributes to the normal functioning of the immune system. Selenium helps protect cells against oxidative damage. Vitamin C contributes to the normal formation of collagen, to the normal functioning of blood vessels. Instructions for use: Take 1 tablet a day.