Tea tree oil mouthwash is a revitalizing cleanser designed to excite and enliven your mouth complement your basic oral care and use after brushing for a clean feeling and refreshing taste traditionally used as a topical agent tea tree is an essential oil produced from the leaves of an evergreen tree native to australia tea tree oil mouthwash is a holistic approach to personal care part of herbal authoritys range of tea tree oil products including tea tree oil lotion shampoo and conditione