High strength & highly absorbable Quest Zinc Citrate supports immunity, fertility, hair, nails & skin. Zinc is an essential trace mineral and is needed for hundreds of enzymatic processes within the body. Zinc works in balance with copper, which is why Quest have added this important mineral to the formulation. Both zinc and copper are required for the normal function of the immune system and for the protection against oxidative stress. Ingredients Dicalcium Phosphate, Zinc Citrate, Microcrystalline Cellulose, Precipitated Silicon Dioxide, Croscarmellose Sodium, Magnesium Stearate, Copper Citrate. Contents: Per 1 tablet: Zinc citrate 100mg Providing zinc 30mg Copper citrate 4mg Providing copper 1.5mg Directions: Take one tablet daily with meals. Swallow with water.