This multivitamin is the ultimate multi-tasker. Vitamin E contributes to the protection of cells from oxidative stress. Vitamin C, D3, B6, B12 and Zinc contribute to the normal function of the immune system. Zinc also contributes to normal cognitive function. Pantothenic Acid (B5), B12 and B6 contribute to normal energy yielding metabolism and the reduction of tiredness and fatigue. Vitamin A contributes to the maintenance of normal vision. Vitamin C contributes to normal collagen formation for the normal function of skin. Biotin contributes to the maintenance of normal hair.