Evidence supporting the use of: Tea Tree
For the health condition: Skin (infections)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Tea tree oil (Melaleuca alternifolia) is widely recognized for its antimicrobial properties, particularly in the context of skin infections. Numerous in vitro studies have demonstrated that tea tree oil and its active component, terpinen-4-ol, exhibit significant antibacterial activity against a range of skin pathogens, including Staphylococcus aureus (including MRSA) and Streptococcus pyogenes. Clinical studies, though fewer in number, have also supported its efficacy; for example, randomized controlled trials have reported that topical tea tree oil preparations can be effective in treating mild to moderate acne vulgaris and superficial fungal infections such as athlete’s foot (Tinea pedis). A 2015 review in the International Journal of Dermatology concluded that tea tree oil has potential as a topical antimicrobial agent, though it also highlighted that more large-scale, high-quality clinical trials are needed to fully confirm its benefits and establish optimal dosing and safety.

Historically, Australian aboriginal people used crushed tea tree leaves for wound healing and infection prevention. Modern topical formulations (creams, gels, solutions) containing tea tree oil are available for various skin infections. It is important to note that while tea tree oil is generally safe when used topically, it can cause skin irritation or allergic reactions in some individuals. Oral ingestion is toxic and not recommended.

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Products containing Tea Tree

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