Broncolin Honey Syrup is a nutritional supplement made with honey, propolis, and natural plant extracts. Propolis is a resinous substance that bees produce from materials collect from tree buds. Rich in flavonoids, a class of antioxidants, propolis has a long history of use as a natural treatment to improve your health. As a natural anti-inflammatory agent, Propolis is the best option. Created by bees to protect hives against microbes and bacteria, propolis is a unique substance that enhances immune function and offers antioxidant activity. Our natural remedy that uses honey's real benefits contains propolis extract, elderberry, eucalyptus, mullein, and peppermint oil. They will help you feel immediate relief.