Ask EWG: Is mineral-based make-up safer?
Question: Is mineral-based make-up safer for you than make-up bought at drug stores or department stores? Most of the mineral-based make-up contains titanium dioxide and/or silica, and some contain iron of some type. Is this okay for your skin? I am wondering how such make-up is absorbed into the body, too!
Answer: Like all cosmetics, mineral-based products raise more questions about their safety than answers. Many mineral-based make-ups contain (or potentially contain) nano-size ingredients, which are 10 to 1,000 times smaller than their normally-sized counterparts and are more likely to be absorbed into the body through the skin because they're so small. (See EWG's research on nano-materials.)