[goldenkey]

Well it's already known that even natural extracts like lavender oil are estrogen amplifiers. And the thermal receipt paper used for years, contained BPA, also an endocrine disruptor. There are tons of chemicals that we use willy nilly without any knowledge on their real and complex outcomes on life. I'd mostly prefer natural but its somewhat specious because having artificial additives means usually the whole mixture will have 10 or 15 chemicals instead of the 103485 in a plant extract. But I'd trust mother nature's 100000000000 years and human civilizations' many years of trials over an Ames test.

https://en.wikipedia.org/wiki/Ames_test