The lavender and estrogen stories are a bit of a myth!
Here are a couple of article with good info on this topic.
Lea Harris is a Certified Clinical Aromatherapist Scholar's Program graduate from Aromahead Institute. This website, and its sister website, LearningAboutEOs, is home to educational advice and information about using essential oils safely. Lea founded and runs the Using Essential Oils Safely facebook group, with hundreds of new members joining each week. Lea is the author of The TRUTH About Essential Oil Safety, and the creator of Safe Essential Oil Labels and the UEOS App. You can find FREE classes here: Free Essential Oil Classes.
Lea received her herbalist certification through The Herbal Academy of New England. Lea is a contributing writer for Natural Herbal Living magazine, and blogs about herbs and natural living on her website, Nourishing Treasures.
Lea is Professional level member of the Alliance of International Aromatherapists.
Businesses, groups, and individuals can hire Lea to consult on safety, product formulation, and more on her website Lea Harris CCA.