Zinc Lozenges supply bioavailable zinc, sweetened with xylitol and natural orange flavour. Each tablet contains 10 mg of elemental zinc in the form of zinc citrate. Zinc is an essential trace element involved in most major metabolic pathways and has important functions in maintaining immune function, healthy skin, and tissue formation. Numerous studies support the fundamental role of zinc in normal immune response in humans. Immune cells must be able to rapidly divide in order to respond to daily challenges. Like all rapidly dividing cells, immune cells depend on adequate amounts of dietary zinc. Similarly, zinc is required to maintain healthy skin as a component of matrix metalloproteinases. These enzymes break down matrix proteins, including collagen and elastin, which helps in skin remodelling and repair.