Go natural with Tea Tree Therapy Ttt Lemon Myrtle Oil Nat (1x.5 OZ). All Refreshed Lemon Myrtle products are formulated with premium native Australian lemon myrtle (Backhousia citriodora) essential oil harvested from plantation trees grown chemical tree in the Byron Bay hinterlands of New South Wales. The oil is steam distilled using only water. . (Note: Description is informational only. Please read the ingredient label on the product for more information and always consult your health professional with any questions prior to use.)