The potential for causing an allergic reaction increases as the oil ages and its chemical composition changes. Īpplication of tea tree oil to the skin can cause an allergic reaction. Tea tree oil should not be used in or around the mouth. It should be kept away from pets and children. It may cause drowsiness, confusion, hallucinations, coma, unsteadiness, weakness, vomiting, diarrhea, nausea, blood cell abnormalities, and severe rashes. Tea tree oil is highly toxic when ingested orally. There is no good evidence tea tree oil is an effective treatment for demodex mite infestations. It is not recommended for treating head lice in children because its effectiveness and safety have not been established and it could cause skin irritation or allergic reactions. Tea tree oil is not recommended for treating nail fungus because it is not effective.
The CHMP states that tea tree oil products should not be used on people under 12 years of age. Īccording to the Committee on Herbal Medicinal Products (CHMP) of the European Medicines Agency, traditional usage suggests that tea tree oil is a possible treatment for "small superficial wounds, insect bites and small boils", and that it may reduce itching in minor cases of athlete's foot. A 2015 Cochrane review of acne complementary therapies found a low-quality, single trial showing benefit on skin lesions compared to placebo. Uses Īlthough tea tree oil is claimed to be useful for treating dandruff, acne, lice, herpes, insect bites, scabies, and skin fungal or bacterial infections, there is insufficient evidence to support any of these claims due to the limited quality of research. It is poisonous if consumed by mouth, and is unsafe for children. Tea tree oil is neither a patented product nor an approved drug in the United States, although it is approved as a complementary medicine for aromatherapy in Australia. Commercial use of tea tree oil began in the 1920s, pioneered by the entrepreneur Arthur Penfold.Īs a traditional medicine, it is typically used as a topical medication in low concentrations for the treatment of skin conditions, but there is little evidence of clinical efficacy.
The oil comprises many constituent chemicals and its composition changes if it is exposed to air and oxidizes.
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.
Tea tree oil, also known as melaleuca oil, is an essential oil with a fresh camphoraceous odor and a colour that ranges from pale yellow to nearly colourless and clear. Tea tree plantation, Coraki, New South Wales
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