Eucalyptus Smithii essential oil. Despite its unpleasant odor, this oil is a powerful natural stimulant of the immune system when applied inside the elbow at the first signs of flu, winter chills, etc. Therapeutic effects : powerful anti-infective, respiratory antiseptic. Family : Myrtaceae. Part used : Leaves, steam distilled without pressure. Reproduction interdite. Tous droits réservés.