Mineral Makeup: Buyer Beware
One of the factors that makes mineral makeup so popular is the smooth, natural, long-lasting coverage -- a feat that's some companies accomplish by pulverizing or "micronizing" their minerals into microscopic or even nanoparticle size.
But some researchers say this activity may come with a price.
"Research shows that when some molecules are dramatically reduced in size to the level of a nanoparticle, they can have very different and very toxic properties than that same molecule would have in its conventional size," says Jane Houlihan, research director of consumer watchdog agency The Environmental Working Group in Washington.
"Minerals like zinc and titanium are safe when applied to healthy skin but in a micronized nanoparticle form, there remains a concern, particularly when applied to damaged skin, or when inhaled," says Houlihan.
The bottom line: Even when beauty comes from the earth, it's still a case of beauty buyer beware.
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