Each species of eucalypt contains a unique suite of constituents called ‘terpenes’ in the leaves – this is the eucalyptus oil, and it’s different for each species. Most species have very little oil and it is never viably extracted for use, but the oil can still be smelt if the leaves are crushed.
The oil of each species therefore has a unique ‘perfume’ due to the particular combination of constituents that the species produces.
The compound 1,8-Cineole, often known as eucalyptol, is the key desired component in most leaf oils which are extracted from eucalypts. Cineole produces the characteristic ‘eucalyptus’ smell, and also has the properties for which eucalyptus oil is renowned. Indeed, a product can only be called “eucalyptus oil” if it contains at least 80% cineole.
Most generic eucalyptus oils available in today’s market are based on Eucalyptus globulus (Bluegum), extracted in other countries, and containing around 60% cineole – 20% less than the desired 80%. These products require a rectification process to increase their cineole concentration, and as such, are blended with other terpene compounds.
In contrast, the oil of Eucalyptus kochii naturally contains 90-95% cineole, thus producing the highest quality of natural eucalyptus oil. There is absolutely no rectification, blending or alteration of any kind in Kochii Eucalyptus Oil. The oil comes straight from our planted trees, steamed and distilled.
On top of the very strong cineole base, the remaining natural components, such as cymene, pinene, terpinen-4-ol and limonene, all go to contribute to the beautiful unique fragrance of the oil of Eucalyptus kochii.