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Tiredness and Lack of energy Advice

 Which are the 7 best essential oils?

In the area of natural medicines, aromatherapy is riding high. Here’s a list of the 7 most health-beneficial essential oils.
Best essential oils for health
Essential oils contain powerful active ingredients, packed with health benefits
Rédaction Supersmart.
2022-06-22Comments (0)

Recap: what is an essential oil?

An essential oil is a plant extract obtained from either a whole, or part of, an aromatic plant – its flowers, fruits, leaves, seeds, roots or bark.

There are two main methods of extracting an essential oil:

With various ways of administering them (topical, inhalation, oral, rectal or vaginal), essential oils can be used both singly or in synergistic combinations. Used appropriately, they can support both physical and mental health (1-2).

Given that it is the quintessence of a plant in its most concentrated form, an essential oil is a natural aid that needs to be used judiciously, especially by more vulnerable individuals (children, women who are pregnant or breastfeeding, those with epilepsy ...) (3). If you have any concerns, consult your doctor or pharmacist. Let’s now explore the 7 best essential oils to keep in your medicine cabinet.

Ravintsara, the ‘good leaf’ of winter

Essential oil of ravintsara – literally ‘good leaf’ in Madagascan – is produced by distilling the leaves of the Madagascan camphor tree (Cinnamomum camphora).

The African climate gives this laurel-like tree a specific chemical profile (or chemotype) which marks it out from other camphor trees. It is very rich in 1,8-cineole (forming around 65% of its composition) and is free from camphor, a molecule associated with neurotoxic effects.

Extremely gentle, ravintsara oil is particularly good for the respiratory system because of its decongestant properties. It also works more systemically to support the body’s defence mechanisms (4). An invaluable aid to see you through the winter months!

Oregano, aromatherapy’s superpower

If oregano leaves are the perfect accompaniment to tomatoes, its flowering tops produce an extremely powerful essential oil – or to be more precise, three, depending on the species distilled: compact oregano (Origanum compactum L.), Spanish oregano (Thymus capitatus L.) and green oregano (Origanum vulgare L. var. hirtum).

Though subtly different, all three contain a significant level of carvacrol, a phenol highly active against infection, parasites and fungi (5). With invigorating properties, they offer a substantial boost in cases of intense fatigue. They also help to support gastrointestinal function (6).

However, this Herculean strength comes with a downside: used long term, essential oil of oregano is dermocaustic and toxic for the liver. It should only be used by adults, for short periods and diluted in a plant oil. It is also available in oral form for greater efficacy (in capsules, for example, in Oil of Oregano, standardised to 40% carvacrol).

Peppermint, a refreshing essential oil

With analgesic and anaesthetic properties, essential oil of peppermint (Mentha x piperita) acts rather like a blast of cold air: its menthol and menthone content helps to counteract the sensation of pain (7). However, pure essential oil of peppermint should only be used on a tiny area: if you want to use it more extensively, always dilute it in an oily or fatty substance.

It is also popular inhaled or applied to the temples for combatting headaches (8).

In some orally-administered supplements, it is combined with other essential oils to maximise its energising potential. When combined, for example, with Chinese cinnamon, rich in aromatic aldehydes, and lemon zest, a source of monoterpenes, it offers a comprehensive, synergistic effect (this is the blend used in the formulation Organic Defense Mix, which also contains green oregano) (9-10).

Tea tree, a modulator in a vial

It was when explorer James Cook landed on Australia’s shores that he first became acquainted with the plant tea tree (Melaleuca alternifolia). Initially attracted by the freshness of its leaves in a tea, he discovered from the local population that tea tree poultices were excellent for preventing secondary wound infections. However, it was only in 1922 that chemist Arthur de Raman provided scientific evidence of its powers.

In aromatherapy, essential oil of tea tree acts as a broad-spectrum booster of the body’s own defences, preventing foreign invaders from adhering to epithelial tissue (11). In the cosmetics world, many find its purifying properties invaluable for relieving skin problems (12).

Eucalyptus, a distilled breath of fresh air

Also originating from the land of the kangaroo, eucalyptus comes in different varieties and actually produces three distinct essential oils:

Lavender, the jewel of relaxing essential oils

Growing at more than 1000m altitude, true lavender, also known as common or English lavender (Lavandula angustifolia) corresponds to the ‘female’ lavender. Its flowering tops produce an essential oil that’s very popular among aromatherapists for its olfactory quality, and for its ease and flexibility of use.

With a high concentration in linalool and linalyl acetate, this Provençal shrub supports relaxation and better sleep quality (15-16). Its oil can be combined with other soothing essential oils (the oral supplement Organic Relaxing Oil Blend, for example, contains a trio of organic zen essential oils – lavender, mandarin zest and caraway).

Helichrysum, for healing bruises of the body and mind

An extract of Everlasting Flower, which gets its name from its exceptional longevity, essential oil of helichrysum (Helichrysum italicum), sometimes known as Italian strawflower or curry plant, helps with all those minor knocks (bumps and bruises… ) by facilitating their resorption, as well as with improving the appearance of older scars (17). A property which also works at an emotional level as a result of its ability to mitigate psycho-emotional shocks.

Though it offers undeniable benefits, helichrysum contains a significant amount of italidione ketones, accumulation of which causes neurotoxicity. It should therefore only be used for relatively short periods (or if used longer-term, make sure you observe adequate therapeutic windows).

References

  1. Ramsey JT, Shropshire BC, Nagy TR, Chambers KD, Li Y, Korach KS. Essential Oils and Health. Yale J Biol Med. 2020 Jun 29;93(2):291-305. PMID: 32607090; PMCID: PMC7309671.
  2. Kuriyama, Hiroko et al. “Immunological and Psychological Benefits of Aromatherapy Massage.” Evidence-based complementary and alternative medicine : eCAM 2,2 (2005): 179-184. doi:10.1093/ecam/neh087
  3. Farrar AJ, Farrar FC. Clinical Aromatherapy. Nurs Clin North Am. 2020;55(4):489-504. doi:10.1016/j.cnur.2020.06.015
  4. Wang W, Li D, Huang X, et al. Study on Antibacterial and Quorum-Sensing Inhibition Activities of Cinnamomum camphora Leaf Essential Oil. Molecules. 2019;24(20):3792. Published 2019 Oct 21. doi:10.3390/molecules24203792
  5. Leyva-López N, Gutiérrez-Grijalva EP, Vazquez-Olivo G, Heredia JB. Essential Oils of Oregano: Biological Activity beyond Their Antimicrobial Properties. Molecules. 2017;22(6):989. Published 2017 Jun 14. doi:10.3390/molecules22060989
  6. Zou Y, Xiang Q, Wang J, Peng J, Wei H. Oregano Essential Oil Improves Intestinal Morphology and Expression of Tight Junction Proteins Associated with Modulation of Selected Intestinal Bacteria and Immune Status in a Pig Model. Biomed Res Int. 2016;2016:5436738. doi:10.1155/2016/5436738
  7. Chumpitazi, B P et al. “Review article: the physiological effects and safety of peppermint oil and its efficacy in irritable bowel syndrome and other functional disorders.” Alimentary pharmacology & therapeutics 47,6 (2018): 738-752. doi:10.1111/apt.14519
  8. Göbel H, Heinze A, Heinze-Kuhn K, Göbel A, Göbel C. Oleum menthae piperitae (Pfefferminzöl) in der Akuttherapie des Kopfschmerzes vom Spannungstyp [Peppermint oil in the acute treatment of tension-type headache]. Schmerz. 2016 Jun;30(3):295-310. German. doi: 10.1007/s00482-016-0109-6. PMID: 27106030.
  9. Ooi LS, Li Y, Kam SL, Wang H, Wong EY, Ooi VE. Antimicrobial activities of cinnamon oil and cinnamaldehyde from the Chinese medicinal herb Cinnamomum cassia Blume. Am J Chin Med. 2006;34(3):511-22. doi: 10.1142/S0192415X06004041. PMID: 16710900.
  10. Ben Hsouna A, Ben Halima N, Smaoui S, Hamdi N. Citrus lemon essential oil: chemical composition, antioxidant and antimicrobial activities with its preservative effect against Listeria monocytogenes inoculated in minced beef meat. Lipids Health Dis. 2017;16(1):146. Published 2017 Aug 3. doi:10.1186/s12944-017-0487-5
  11. Carson CF, Hammer KA, Riley TV. Melaleuca alternifolia (Tea Tree) oil: a review of antimicrobial and other medicinal properties. Clin Microbiol Rev. 2006;19(1):50-62. doi:10.1128/CMR.19.1.50-62.2006
  12. Pazyar N, Yaghoobi R, Bagherani N, Kazerouni A. A review of applications of tea tree oil in dermatology. Int J Dermatol. 2013 Jul;52(7):784-90. doi: 10.1111/j.1365-4632.2012.05654.x. Epub 2012 Sep 24. PMID: 22998411.
  13. Yadav N, Chandra H. Suppression of inflammatory and infection responses in lung macrophages by eucalyptus oil and its constituent 1,8-cineole: Role of pattern recognition receptors TREM-1 and NLRP3, the MAP kinase regulator MKP-1, and NFκ PLoS One. 2017;12(11):e0188232. Published 2017 Nov 15. doi:10.1371/journal.pone.0188232
  14. Silva J, Abebe W, Sousa SM, Duarte VG, Machado MI, Matos FJ. Analgesic and anti-inflammatory effects of essential oils of Eucalyptus. J Ethnopharmacol. 2003 Dec;89(2-3):277-83. doi: 10.1016/j.jep.2003.09.007. PMID: 14611892.
  15. Malcolm BJ, Tallian K. Essential oil of lavender in anxiety disorders: Ready for prime time?. Ment Health Clin. 2018;7(4):147-155. Published 2018 Mar 26. doi:10.9740/mhc.2017.07.147
  16. Velasco-Rodríguez R, Pérez-Hernández MG, Maturano-Melgoza JA, Hilerio-López ÁG, Monroy-Rojas A, Arana-Gómez B, Vásquez C. The effect of aromatherapy with lavender (Lavandula angustifolia) on serum melatonin levels. Complement Ther Med. 2019 Dec;47:102208. doi: 10.1016/j.ctim.2019.102208. Epub 2019 Oct 5. PMID: 31780012.
  17. Andjić M, Božin B, Draginić N, et al. Formulation and Evaluation of Helichrysum italicum Essential Oil-Based Topical Formulations for Wound Healing in Diabetic Rats. Pharmaceuticals (Basel). 2021;14(8):813. Published 2021 Aug 19. doi:10.3390/ph14080813
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