The Eucalyptus Tree
The phrase “eucalyptus tree” is a bit misleading, since eucalyptus trees consist of more than 700 species of flowering trees and shrubs. The trees are members of the myrtle family and most species are native to Australia. The leaves are widely used throughout the world for their medicinal properties. Often the leaves of the eucalyptus are used to produce essential oils for inhalation or topical use.
Eucalyptol, a substance with a content of 90% eucalyptus oil, is found within other aromatic plants, including rosemary, wormwood, Cannabis sativa, and common sage. Eucalyptol has a fresh, minty smell, and at certain levels, can be toxic when ingested.
Although the oil from eucalyptus can be toxic, dried tree leaves are sometimes made into a tea that is high in antioxidants and flavonoids. Flavonoids protect the body from free radical damage and oxidative stress. A large study of approximately 100,000 participants found that a diet high in flavonoids was associated with a lower risk of heart disease. Here are some other healthful properties found in eucalyptus:
Reduction of Cold Symptoms
Eucalyptus is a very common ingredient in cough and cold products, including lozenges. It is an anti-inflammatory and may decrease mucus and expand the bronchial tubes. One study found that eucalyptol can help control asthma symptoms. The essential oil Eucalyptus may help relieve cold symptoms by inhaling fumes through the nose. Eucalyptol has been found to reduce cough frequency, nasal congestion, and headaches related to the common cold.
Hair and Skin
Topical eucalyptus extract may help increase ceramide production in the skin. This assists the skin’s water-holding capacity and protects the skin barrier. The extract is found within many skin lotions and hair products, as it may help increase the moisture content of dry skin and hair.
Pain Relief
A study of 52 people who were post-surgical knee replacement patients revealed that 30 minutes of inhalation of eucalyptus oil that had been dissolved in almond oil resulted in a significant decrease in perceived pain. They also recorded lower blood pressure readings. These findings were in contrast to other participants who inhaled only almond oil. The pain-relieving findings of other studies, however, did not yield the same sort of results. More research is needed. Inhalation of the oil may promote relaxation and stress, which could lower anxiety and the perception of pain.
Teeth and Gums
Eucalyptol is a common ingredient in mouthwash. It contains high levels of compounds that are associated with lower levels of bacteria that can cause gum disease and cavities. One study of 97 participants found that chewing gum with eucalyptol for at least five minutes five times per day resulted in a decrease in gum bleeding, plaque build-up, and gum inflammation. The control group had no such improvements.
Naturally Repels Insects
Topical application of eucalyptus oil, with its high eucalyptol content, wards off mosquitoes and other insects for up to seven hours. The repellent’s efficacy is based on the eucalyptol content – the higher the eucalyptol, the more effective the repellant. There are many consumer products marketed and sold as insect repellants that contain a combination of lemon and eucalyptus oil. Eucalyptus oil may also be an effective treatment for head lice, although more research is needed.
Ways to Incorporate Eucalyptus – and Some Precautions
- Whole leaves can be hung in a steamy shower for aromatherapy purposes.
- Add drops of eucalyptus oil to a diffuser.
- Ground eucalyptus leaves are sold as tea.
- Look for topical lotions, shampoos, and insect repellants with eucalyptus oil.
- Purchase mouthwash, or gum, containing eucalyptol.
Because there is some level of toxicity with eucalyptus, ask your doctor before using products that contain the ingredient. This is especially important for children, pregnant or breastfeeding women, and people taking medications with which eucalyptus may interact. Also, because some people have an allergic reaction to the oil, always use a carrier oil such as jojoba for topical use – and perform a patch test beforehand.
The video below discusses the many health benefits of the Eucalyptus tree.
Los Angeles Tree Injury Lawyer
I’m Ed Smith, a Tree Injury Lawyer in Los Angeles. If you or a loved one were struck by a falling tree or branch and sustained injuries, please call our injury attorneys for free and friendly advice at (800) 404-5400 or (213) 992-4300.
I have worked on behalf of injured Californians for over 38 years. Please review our settlements and verdicts. Please also take a moment to read what our prior clients have to say about our services:
I am honored to be a member of the following legal groups:
Picture: Megan McGuire
:mm llo [cs 780]