The Zinc Select Lozenge can be used as sore throat support OR as a daily supplement. Sucking on the lozenge coats the throat. Easy for children to take. Zinc plays a fundamental role in both the innate and acquired responses to viral infections. The immune system is very dependent on a steady supply of zinc. Zinc is an essential trace mineral involved in many biological processes including brain function, wound healing, immune function and vision maintenance. Daily intake of zinc is required to maintain a steady state because the body has no specialized zinc storage system.