Latin name: Eucalyptus Globulus Part of the Plant Used: Leaves and Twigs Origin: China Extraction Method: Steam Distillation Eucalyptus essential oil is a concentrated liquid that contains volatile aromatic compounds from the eucalyptus globulus tree. Eucalyptus essential oil is said to be antibacterial. It has been used to relieve coughs, colds, and other respiratory problems. In aromatherapy, eucalyptus is said to promote activity, vitality and energy. Add a few drops to your bath water to feel invigorated and refreshed. Soak your sore feet in a bowl of warm water with 4-5 drops of this oil to relieve it. A few drops of oil in a diffuser are said to kill germs and bacteria in the air, a good idea for a room for example.