Natural Factors Zinc Citrate is an essential trace mineral that supports the immune system and helps maintain the bodyÕs ability to metabolize nutrients. Zinc is important for connective tissue formation and helps maintain healthy skin, hair, nails, and bones. This one-per-day formula contains 50 mg of elemental zinc in a bioavailable citrate form.Medicinal IngredientsNon-Medicinal IngredientsMicrocrystalline cellulose, stearic acid, vegetable grade magnesium stearate (lubricant), silica.Helps to maintain the bodyÕs ability to metabolize nutrients. Helps to maintain healthy skin, support immune function and is a factor in the maintenance of good health. Helps in connective tissue formation.