Much maligned ingredients: Revisiting 1,4-dioxane

In this post, Anonymous asks about PEG-7 olivate: How is this in terms of non-toxic? Are there any concerns about health with this ingredient? I keep hearing some personal care products linked to a 1,4 dioxide carinogen for example.I wrote a post about 1,4-dioxane in the much maligned ingredients series, but I’ll write a little more…