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Rue Essential Oil

Home > List of Essential Oils > Rue Essential Oil
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Rue (Ruta graveolens) essential oil comes from a shrubby herb in the Rutaceae family. The plant features branch-like stalks, blue-green leaves, yellow flowers and produces small, seedy fruits.

The whole plant has an acrid, unappealing scent that is imparted into the oil created by steam distillation of the herb. Rue essential oil smells like a bitter, fruity herb.

  • Origins
  • Uses
  • Benefits/Dangers
  • Research

What is Rue?

The herb is native to the Mediterranean and grows wild across the region. It is mainly cultivated for its oil in France, Italy, Spain, and Yugoslavia.

There are various forms of Rue essential oil, none of which should be used in aromatherapy.

Besides R. graveolens, the Sardinian or North African rue (R. angustifolia); summer or Spanish rue (R. montana); and winter or Sicilian rue (R. chalepensis or R. bracteosa); also produce essential oil.

If this is not confusing enough, winter rue is also sometimes called North African rue like the Sardinian.

The viscous oil is usually yellow or orange and solidifies at room temperature. This is one way to tell the oils apart. Winter rue doesn’t harden in the same way.

R. graveolens is sometimes referred to as herby grass, herb-of-grace, mother of the herbs, and garden rue, among others.

It is said that those who smell the fresh leaves of the plant will remember it for life since it smells that bad. Dehydrated leaves are not so horrible-smelling because the volatile oils have dissipated and taken the stench with them.

The plant’s main constituent is 2-Undecanone, or methyl nonyl ketone. This chemical causes eye, skin, digestive and respiratory tract irritation and is combustible. [1]

Rue Essential Oil Uses

Rue oil should not be used for any reason. Nevertheless, the R. graveolens plant has been used in many interesting ways throughout history: [2]

Ancient Uses

  • The herb itself was used in fighting off contagions like the plague.
  • Dioscorides believed that weasels ate the leaves of the herb before fighting snakes, so he recommended it for snakebites in his de Materia Medica.
  • It was used as an antidote for poisons.
  • The plant was an ingredient for exorcisms in Medieval times.
  • Poultices were made from the fresh leaves to be used on cuts.
  • Even though it was believed that witches used the plant for its hallucinogenic effects, rue was often used as protection against witchcraft and to ward off evil spirits. It is also said to remove a werewolves’ power.
  • Women used to drink rue tea, also known as ‘ruta tea,’ to terminate unwanted pregnancies.

Historic Medicinal Uses

Herbalists throughout history have used the plant in many ways to heal various ailments, such as a sedative as well as for: [3]

  • Easing colic
  • Treating skin inflammation
  • Soothing earaches
  • Relieving menstrual problems
  • Inducing abortion
  • Nervous afflictions
  • Digestion problems
  • Circulatory issues
  • Breathing problems like coughing and pain from pleurisy
  • Headache
  • Muscle spasms

The herb was also thought to help eyesight. Michelangelo and Davinci were said to have chewed on the leaves in an effort to improve both their sight and creativity.

Insect Repellant

Gardeners know that one of the rue plant benefits is to keep insects at bay, including fleas, flies, Japanese beetles, mosquitos, and slugs.

Because the oils present in the leaves can cause a skin rash, care must be taken to use the plant in this manner.

Animal lovers should be careful, too. Rue keeps cats away from the garden, but it is toxic to these curious creatures. [4]

Rue Essential Oil Benefits and Dangers

The side effects and dangers of using Rue essential oil far outweigh the benefits.

The plant itself poses many dangers. When you consider that the volatile oils of plants are the condensed phytochemicals of them, you begin to see how dangerous they can be.

Aromatherapists and the governing bodies of aromatherapy warn against anyone using this because of the numerous rue essential oil dangers.

WebMD lists a host of problems that a person can run into from trying to use the plant or its oils as medicine: [5]

  • Rue is an abortifacient. It can cause uterine contractions and should not be used under any circumstance by a pregnant woman or anyone breastfeeding as it could harm the baby.
  • Even though it has been used for gastrointestinal (GI) issues, it can make these problems worse.
  • The oil can hurt the kidneys and urinary system.
  • Existing liver problems can be worsened by its use.

Other Side Effects

Rue essential oil irritates mucous membranes. It can cause severe rashes when used on the skin and is phototoxic, meaning it can increase a person’s sensitivity to the sun.

Besides all of that, other side effects include dizziness, sleeping problems, changes in mood, spasms and in severe cases, death.

Rue infographic

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Rue Essential Oil Research, Facts, and Studies

There have been a few studies trying to determine the efficacy of rue essential oil for other uses.

Antifungal and Herbicide

Tunisian rue was studied in 2015 to see its effects on 10 pathogenic plant fungi. It was determined that rue oil made from harvesting the herb at the flowering phase showed the highest levels of antifungal activity.

The researchers also determined that the essential oil was an effective herbicide against a variety of weeds. [6]

Colorectal Cancer

In a study in Italy in 2011, 56 patients with colon cancer at various stages were given an extract of R. chalepensis. It was determined that the extract helped to protect red blood cells from oxidation. [7]

This was especially apparent in the earlier stages of the cancer. The findings show promise for using the herb’s properties to slow tumor growth, but more studies need to be done.

Conclusion

The rue plant and its’ oil were considered a miracle cure in ancient times. It was used as an antidote to poison and to treat many other inflictions.

Hundreds of years ago, people thought this plant could ward off plagues, witches, evil spirits and even werewolves.

Rue tea was often used as a natural abortifacient, and women who are pregnant or nursing should stay away from the plant and its oil.

Today, the rue plant benefits are overshadowed by its dangers. This oil should not be used under any circumstance in aromatherapy, whether for a kid’s blend or an adult’s.

Using this plant or its oils for medicinal purposes in an uncontrolled setting can cause great harm and loss of life.

Safety

Essential Oil Safety

Correct selection and use of essential oils is crucial to ensure that you enjoy the best benefits of oils, without any of the downsides. Remember, some essential oils can be very potent and powerful. We therefore highly recommend this book to all of our readers: Essential Oil Safety: A Guide for Health Care Professionals 2nd Edition

DISCLAIMER: Momprepares.com is intended to be used for educational and informational purposes only. For safe use, please contact your medical practictioner or health care provider. Momprepares.com, its parent company, and subsidiaries does not assume liability for any actions taken after visiting these pages and does not assume liability if one misuses essential oils. These statements have not been evaluated by the Food and Drug Administration. This article is not intended to diagnose, treat, cure, or prevent disease.

About Mom Prepares

Mom Prepares is an essential oils and natural living blog. We bridge the gap between scientific research and the everyday essential oils user.

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