Originally published on Guide to Aromatherapy
Eucalyptus oil is a misleading label, because there are in fact several different kinds of eucalyptus essential oil extracted from various species of eucalyptus tree.
The five types you are most likely to come across are the Blue Gum, the Broad Leaved Peppermint, the Narrow Leaved Peppermint, the Lemon Scented Eucalyptus and the Lemon Scented Ironbark. Any of these (and others) may be sold labeled simply eucalyptus oil. This is unfortunate, as the different types don’t all have the same properties.
Some properties are common to all four types of eucalyptus essential oil. All are antifungal, antiseptic, antiviral, expectorant and can be used to treat congestion (catarrh), coughs, colds, flu and other viral infections, aches and pains, rheumatism, cuts and wounds.
Blue Gum Eucalyptus is extracted from Eucalyptus globulus, one of the tallest trees in the world. There is a tree in Tasmania recorded at 90.7m (or more than 297 feet) in height! Like all eucalyptus, these trees are native to Australia, although most of the cultivation for commercial use is in Spain and Portugal.
Additional properties listed for Blue Gum are as an analgesic, anti-inflammatory, antispasmodic, deodorant, insect repellent, soothing agent and vermifuge used to treat asthma, blisters, burns, catarrh, chicken pox, cystitis, debility, headaches, herpes, insect bites, leucorrhea, lice, measles, neuralgia, poor circulation, sinusitis, skin infections, sore throats and external ulcers.
Broad Leaved Peppermint Eucalyptus is an extract of Eucalyptus dives and is sometimes referred to as dives eucalyptus. The tree is much smaller than the blue gum and most cultivated trees are produced in South Africa.
It is no longer generally used medicinally except by veterinarians. However, it can be used for broadly the same uses as blue gum.
Lemon Scented Eucalyptus is an extract of Corymbia citriodora (formerly called Eucalyptus citriodora), which reaches the same sort of height as the narrow leaved peppermint. Cultivated trees are mainly grown in China and Brazil.
I offer Eucalyptus citriodora (Lemon-scented) Essential Oil in my online shop.
Narrow Leaved Peppermint Eucalyptus is extracted from Eucalyptus radiata, which is tall (up to 5om), but doesn’t reach the same heights as the blue gum. This was the tree from which eucalyptus oil was first extracted by Joseph Bosisto in 1854, though it is less frequently used nowadays.
In addition to the common properties listed earlier, it is anti-infectious, antibacterial, anti-inflammatory, antimicrobial and antispasmodic and can be used to treat bronchitis, fever, herpes, nervous exhaustion, poor circulation, sinusitis and sore throats. It’s also listed in at least one place to treat whooping cough but it must be stressed that in this case it should only be used as an addition to orthodox medical treatment, as this is a serious disease which requires immediate medical attention. Narrow leaved peppermint is also said to be supportive and uplifting and can be used as a concentration aid, to improve mental clarity and promote a positive outlook.
I offer Eucalyptus radiata (narrow-leaved peppermint) essential oil and organic Eucalyptus radiata (narrow-leaved peppermint) essential oil in my online shop.
Lemon-Scented Ironbark Eucalyptus essential oil comes from Eucalyptus staigeriana. It is uplifting to both mind and body, a natural immune system booster. Use in blends to boost the immune system, for wounds, abscesses, burns, external ulcers, veruccas (plantar warts), insect bites and for muscle, nerve and joint pain. Use in a burner or diffuser to gain the benefit of its uplifting, antidepressant and stress-relieving qualities. It is safe for use with children.
Eucalyptus oils should always be mixed with a carrier before using them on the skin. They can also be used in an essential oil diffuser, a steam inhalation, or a few drops can be added to a bath after it has been filled. Never take eucalyptus oils internally except as part of a prescribed medication.
Eucalyptus oil deserves a place in every home, and the choice of variety is up to you. Blue gum is the most frequently offered, but you may want to choose one of the others if available from your supplier, for the additional properties which it confers.