October 2006

Our research reveals the widespread use of nano-scale ingredients in everyday personal care products. We identified nearly 9,800 products containing nano-scale ingredients or ingredients that may contain a nano-scale fraction.1 These include 256 products containing one or more of 57 different types of nano-scale or micronized ingredients, and 9,509 additional products containing ingredients that are commercially available in nano sizes, but nearly all of which have no label information on particle size whatsoever. Our results represent the most comprehensive list of such products compiled to date.