ExtraZnc Syrup The First Zinc Syrup in the market. Our body required Zinc for the activity of approximately 300 enzyme, and it plays a role in immune function, protein synthesis, wound healing, DNA synthesis, and cell division. Our bodies have no specialized zinc storage system so a daily intake of zinc is required to maintain a steady state. Why (ExtraZnc)? As it made of Zinc Bis glycinate shows high safety & bioavailability by 43% than other Zinc salts like gluconate, oxide, or sulfate. Indication: Immunity enhancement for our children and elderly parents. Cold and Flu. Acute and Persistent diarrhea. Nappy rash.