It’s both! Tea tree, also known by its Latin name melaleuca, was once used to make medicinal tea. Now, it’s frequently used for its essential oil, of which there are three common types. Melaleuca alternifolia (tea tree essential oil) has antibacterial and medicinal properties and is used for a variety of conditions such as lice, body odour, cold sores, and foot fungus. Melaleuca quinquenervia (niaouli essential oil) has similar disinfecting properties to tea tree essential oil, but is gentler on the skin. Melaleuca cajuputi (cajuput essential oil) actually has similar properties to eucalyptus and lemon oils.