A lot of cancer survivors avoid soy because it is high in phyto-estrogens which can aggravate existing cancers or possibly spur metastasis. I wonder how well-known is this information about tea tree oil and lavender.
I always thought there was a problem with the tendency to put everything but the kitchen sink into stuff. I deplore nutrition labeling which exacerbated if not started the soy mania. It is getting more and more difficult to find products without soy protein added.
I also- also due to allergies- stay away from the various toiletries which contain a hodgepodge of plant extracts.