Made from the leaves and flowers of the Eucalyptus trees. Eucalyptus Essential Oil has been used due to its medicinal properties for centuries. It is also known as Nilgiri Oil. Most of the oil is extracted from the leaves of this tree. A process known as steam distillation is used to extract the oil after crushing the dried leaves. Its therapeutic benefits are due to its antimicrobial, antibacterial, antiseptic, antispasmodic, and antiviral properties.