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Tea tree oil

This article is about essential oil isolated from the leaves of the tea tree, Melaleuca alternifolia. For the sweet seasoning oil pressed from Camellia seeds, C. sinensis or C. oleifera, see tea seed oil.

Origin of this essential oil, the tea tree, Melaleuca alternifolia
Tea tree plantation, Coraki, New South Wales

Tea tree oil, also known as melaleuca oil, is an essential oil with a fresh, camphoraceous odour and a colour that ranges from pale yellow to nearly colourless and clear.[1][2] It is derived from the leaves of the tea tree, Melaleuca alternifolia, native to southeast Queensland and the northeast coast of New South Wales, Australia. The oil comprises many constituent chemicals, and its composition changes if it is exposed to air and oxidises. Commercial use of tea tree oil began in the 1920s, pioneered by the entrepreneur Arthur Penfold.

There is little evidence for the effectiveness of tea tree oil in treating mite-infected crusting of eyelids,[3] although some claims of efficacy exist.[4][5] In traditional medicine, it may be applied topically in low concentrations for skin diseases, although there is little evidence for efficacy.[2][6][7][8]

Tea tree oil is neither a patented product nor an approved drug in the United States, although it has been used in skin care products[2][8] and is approved as a complementary medicine for aromatherapy in Australia.[9] It is poisonous if consumed by mouth and is unsafe for children.[10]

  1. ^ "Essential oil of Melaleuca, terpene-4-ol (tea tree oil): ISO 4730: 2017 (E)". International Organization for Standardization (ISO), Geneva, Switzerland. 2017. Retrieved 2 February 2019.
  2. ^ a b c "Tea tree oil". Drugs.com. 13 February 2023. Retrieved 4 May 2023.
  3. ^ Savla K, Le JT, Pucker AD (June 2020). "Tea tree oil for demodex blepharitis". Cochrane Database of Systematic Reviews (Systematic review). 6 (6): CD013333. doi:10.1002/14651858.CD013333.pub2. PMC 7388771. PMID 32589270.
  4. ^ Navel, Valentin; Mulliez, Aurélien; Benoist d’Azy, Cédric; et al. (1 October 2019). "Efficacy of treatments for demodex blepharitis: A systematic review and meta-analysis". The Ocular Surface. 17 (4): 655–669. doi:10.1016/j.jtos.2019.06.004. ISSN 1542-0124. PMID 31229586.
  5. ^ Koo, Hyun; Kim, Tae Hyung; Kim, Kyoung Woo; Wee, Sung Wook; Chun, Yeoun Sook; Kim, Jae Chan (1 December 2012). "Ocular Surface Discomfort and Demodex: Effect of Tea Tree Oil Eyelid Scrub in Demodex Blepharitis". Journal of Korean Medical Science. 27 (12): 1574–1579. doi:10.3346/jkms.2012.27.12.1574. ISSN 1011-8934. PMC 3524441. PMID 23255861.
  6. ^ "Opinion on Tea tree oil" (PDF). SCCP/1155/08 Scientific Committee on Consumer Products. 16 December 2008.
  7. ^ "Tea tree oil". National Center for Complementary and Integrative Health, US National Institutes of Health. 1 October 2020. Retrieved 3 May 2023.
  8. ^ a b Thomas, J; Carson, C. F; Peterson, G. M; et al. (2016). "Therapeutic Potential of Tea Tree Oil for Scabies". The American Journal of Tropical Medicine and Hygiene (Review). 94 (2): 258–266. doi:10.4269/ajtmh.14-0515. PMC 4751955. PMID 26787146.
  9. ^ "Summary for ARTG Entry: 79370 Tea Tree Oil, Pure Essential Oil". Therapeutic Goods Administration. 2020. Retrieved 3 July 2020.
  10. ^ Cite error: The named reference poison was invoked but never defined (see the help page).

Tea tree oil

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