A one-a-day supplement combining zinc and copper. Functions of Zinc: Zinc contributes to the normal function of the immune system Zinc contributes to the protection of cells from oxidative stress Zinc contibutes to normal fertility and reproduction Zinc contributes to the maintenance of normal testosterone levels in the blood Zinc has a role in the process of cell division Zinc contributes to normal macronutrient metabolism Zinc contributes to the maintenance of normal vision Zinc contributes to the maintenance of normal skin, hair and nails Zinc contributes to the maintenance of normal bones Zinc contributes to normal cognitive function. Functions of Copper: Copper contributes to the maintenance of normal connective tissues Copper contributes to normal energy yielding metabolism Copper contributes to normal functioning of the nervous system Copper contributes to normal hair and skin pigmentation Copper contributes to normal iron transport in the body Copper contributes to the normal function of the immune system Copper contributes to the protection of cells from oxidative stress