Chemicals in lavender and tea tree oil appear to be hormone disruptors

(The Endocrine Society) A new study lends further evidence to a suspected link between abnormal breast growth in young boys--called prepubertal gynecomastia--and regular exposure to lavender or tea tree oil, by finding that key chemicals in these common plant-derived oils act as endocrine-disrupting chemicals. The study results will be presented Monday at ENDO 2018, the Endocrine Society's 100th annual meeting in Chicago.