Grants Toothpaste with organic tea tree oil has a strong, fresh taste that helps keep teeth and gums thoroughly clean and leaves the mouth feeling sparkling fresh. Tea tree oil has been renown for its antibacterial properties for thousands of years. Australian aborigines would pick the oil-covered leaves of the tea tree plant and rub the leaves on their skin to help alleviate cuts, bites, burns and other skin ailments. Modern day research and anecdotal evidence continues to discover new oral health benefits of tea tree oil, such as reducing chronic inflammation caused by gingivtis and helping to speed healing of mouth ulcers. With the beneficial herbs of cardamom, caraway, celery, coriander, rosemary, sage, thyme, dill, eucalyptus, and mint providing pleasant aromatic flavors, it also cleanses and sanitises the palate and has beneficial effects on digestion.