Most oils can be toxic to humans as well.[32] A report of three cases documented gynecomastia in prepubertal boys who were exposed to topical lavender and tea tree oils.[33] The Aromatherapy Trade Council of the UK issued a rebuttal.[34] The Australian Tea Tree Association, a group that promotes the interests of Australian tea tree oil producers, exporters and manufacturers issued a letter that questioned the study and called on the New England Journal of Medicine for a retraction.[35] Another article published by a different research group also documented three cases of gynecomastia in prepubertal boys who were exposed to topical lavender oil.[36]
You can use essential oils in any number of ways. For example, add them to body lotions or carrier oils, and then apply them topically. Try enhancing a facial toner, shampoo, or conditioner with essential oils. Or incorporate them into liquid soap, toothpaste, or mouthwash. You can also diffuse or spritz the oils throughout a room or pour them into a bath.
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