Tea tree oil is used in a variety of products as a natural antiseptic. While it is generally regarded as safe when used on the skin, it can be toxic when taken orally.
Basics
Tea tree oil is the essential oil of the Australian tea tree, Melaleuca alternifolia. It is a favorite of aromatherapists and is widely known and used for its antiseptic properties. The oil can be used by itself, in a blend with other essential oils or in products like toothpaste or soap.
Topical Use
Used topically, tea tree oil is regarded as generally safe. Unlike other essential oils, it can be used 100 percent undiluted on the skin on people with no allergy or sensitivity to it. However, cases of allergic contact dermatitis or skin irritation have been reported. If you experience redness, rash or irritation following the application of tea tree oil or a product containing tea tree oil, discontinue use.
Oral Use
Do not take orally. According to "Natural Standard" by Ulbricht and Basch, tea tree oil can cause central nervous system depression and allergic reactions on the skin when ingested. If it is included in products designed for the mouth, such as toothpaste, do not swallow.
Use on Pets
Do not use tea tree oil on pets. According to a study reported in the Journal of Veterinary and Human Toxicology in 1994, tea tree oil has been reported to produce neurologic symptoms in dogs and cats, such as weakness and central nervous system depression.
Warnings
Do not use tea tree oil in the ears. A study published in the Journal of Audiology and Neurotology in 2000 demonstrated that tea tree oil may be toxic to the ear. Never use tea tree oil on skin that is broken or irritated.
Tags: been reported, central nervous, central nervous system, essential oils, nervous system, nervous system depression, other essential