Where are Nanoparticles Found?
Hundreds of personal care products already contain nano-sized ingredients, and thousands more contain ingredients that are available in nano form but don’t include information about particle size on the labels, according to a Skin Deep analysis. Since nano-sized ingredients are absorbed differently into the body, they require separate safety studies. Manufacturers seem to be following the pattern they established with conventional chemical ingredients-put poorly tested chemicals into personal care products and do the science later, if at all. Common sources of nanoparticles today are sunscreens , mineral make up, anti-aging creams, facial moisturizers , eye shadows, and mascaras. Ironically, nanoparticles used in sunscreen came about because of an effort to avoid toxic materials. Reports of the dangerous effects of benzophenone, homosalate and octyl-methoxycinnamate that some sunscreens use caused many consumers to return to the old-school products containing titanium dioxide and zinc
