So, you can’t extrapolate the petri dish effects of the whole oil to what one might see when applied on the skin. You must attribute the article to NutritionFacts.org with a link back to our website in your republication. [see. Assessment of estrogenic activity in some common essential oil constituents. Manager, Public Relations The majority of responses from the community were either critical of the research – pointing to alternative explanations for the putative hormone-disrupting effects of essential oils – or neutrally cautious, warning that we should wait for the research to be properly published in a peer-reviewed journal. 2012;41(2):56-8. Required fields are marked *. Essential oil safety: A guide for health care professionals, 2nd Edition. Given these circumstances, it was theorized that lavender oil and tea tree oil acted as endocrine disruptors (i.e., chemicals that interfere with the body’s system of glands and the hormones produced by them). But, as a tea tree oil company representative pointed out, only one of the three boys was exposed to any amount of tea tree oil, and they were also exposed to lavender oil; so, lavender oil may have been to blame in all three cases. Estrogenic and Anti-Estrogenic Activity of Off-the-Shelf Hair and Skin Care Products. Her work is regularly featured in media such as First For Women, Woman's World, and Natural Health. Tea tree oil is an essential oil distilled from the leaves of Melaleuca alternifolia, a plant native to Australia. Kemper K. J., Romm A. J, Gardiner P. Prepubertal gynecomastia linked to lavender and tea tree oils. In a study published in the New England Journal of Medicine in 2007, repeated topical use of products containing lavender oil and/or tea tree oil was linked to an increased risk of prepubertal gynecomastia (a condition marked by enlarged breast tissue in boys prior to puberty).. Their common ground was that the effects were weak and, if true, would have been observed long ago considering the global exposure to lavender and tea tree oils. The products you know and love at Way of Will are now delivered in 100% sustainable packing and shipping materials! 2001). [email protected], Jenni Glenn Gingery An older study from 2007 found that gynecomastia coincided with the use of essential oil-based products, and that the symptoms of the condition disappeared when these products were no longer used. 2013). We hope you’ll continue to grow with us as we continue to embrace sustainability practices to reduce our carbon footprint and deliver products that makes you feel good both inside and out. While in vitro assays are useful for screening and establishing mechanistic links – which is what the new study was indeed designed to do – the results on their own are not directly applicable to a real-life situation. 2016). But, if you add an estrogen blocker along with the estrogen, it abolishes the effect. A study published in Journal of Exposure Science and Environmental Epidemiology found that seven of eight personal care products tested were found to have estrogenic or anti-estrogenic activity. Abnormal hairiness (hirsutism) may also be a sign of PCOS—polycystic ovary syndrome. Select the subscription method below that best fits your lifestyle. Int J Toxicol. All rights reserved. If you have any questions, please Contact Us. Should we rethink the way we use essential oils? “Our society deems essential oils as safe […] However, they possess a diverse amount of chemicals and should be used with caution because some of these chemicals are potential endocrine disruptors.”. So why did Ramsey and co-workers (2019) conduct another set of in vitroexperiments? In response to the study by Henley and co-workers (2007), an uterotrophic assay of lavender oil by dermal application (once daily for three consecutive days to rats’ backs covered with patches, at 4% and 20% dilution) did not indicate estrogenic activity (Politano et al. 2007), but this time to establish mechanistic links to individual constituents from lavender and tea tree oils. Essential oil constituents have specific chemical properties that can make them more reactive and better able to dissolve certain components than fatty plant oils. In addition, the authors evaluated whether the constituents could stimulate activation of the estrogen receptor by recruiting its coactivator, SRC-2. From bench to bedside and all the stages in between, the Hormone Health Network is committed to supporting patient and public education. 2007;356(5):479-85. Before the study was conducted, three otherwise healthy boys (ages four, seven, and 10) were diagnosed with gynecomastia by a pediatric endocrinologist at the University of Colorado at Denver and Health Science Center's School of Medicine. Graduation thesis, University program: Cosmetology, University of Ljubljana, 80 p. [in Slovenian]. In both whole oils and individual constituents, anti-androgenic responses were more pronounced than estrogenic responses, which may be equally relevant for potential hormone disruption. Canadian journal of physiology and pharmacology, 90(6), 697-703. In prepubertal children, elevated estrogen-mediated activity or depressed androgen-mediated activity can cause premature thelarche (breast growth in prepubertal girls) and gynecomastia (breast growth in boys). Okay. They describe three young boys in whom breast growth coincided with the topical application of products that contained lavender and tea tree oils. adroll_language = "en_CA"; From the beginning, we’ve dedicated our company to creating superior products using top-quality, natural ingredients, so it only makes sense to adopt more eco-friendly approaches to our packaging and shipping. 2007;356(24):2541-2. But, that had never been done…until later that year. Conley, J. M., Hannas, B. R., Furr, J. R., Wilson, V. S., & Gray Jr, L. E. (2016). Does Tea Tree Oil Have Hormonal Side Effects? The NIEHS Division of Intramural Research funded this study through its support of Korach. However, there are plant-based molecules similar in structure. Your email address will not be published. It is theoretically possible to extrapolate findings from in vitro assays to in vivo settings by calculating the relative potency of a test compound to a reference compound such as estradiol and scaling the value to its in vivo potency. Imbalances due to internal factors or exposure to endocrine-disrupting chemicals can cause a variety of developmental disorders. Yes. Scientific Committee on Consumer Products. To subscribe, select the "Subscribe via E-Mail" button above. These molecules are termed xenoestrogens (meaning they are foreign to the body) and can be of natural or synthetic origin. (2016). Let me walk you through those. and so on from Trader Joe's I believe. In a 2007 research report, doctors based in Colorado and North Carolina concluded that Lavender and Tea Tree essential oils “were responsible for breast growth in three boys,” or produced an estrogenic effect when used. In all cases, chi… Tirabassi G, Giovannini L, Paggi F, et al. In fact, if the anti-male hormone components of tea tree oil remain on the skin, well, how about using it to treat women who feel they are affected by excessive hairiness?
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