Our steam-distilled Tea Tree Oil (Melaleuca alternifolia) has an aroma similar to that of eucalyptus with hints of pine that helps support clear thinking, uplift the spirit, and ease feelings of stress. Ideal as a cleansing aid for use in soap, shampoo, in face and body washes. For thousands of years, the Australian Aboriginal people have been using the leaves of the melaleuca tree for medicinal purposes, but the incredible properties of this tree were unknown to the rest of the world until the 1920s, when Dr. A.R. Penfold discovered that the germ-fighting capabilities of this oil. It was his discovery that eventually put Tea Tree Oil into every first-aid kit in the Australian armed forces during World War II.