Nanomaterials: back from dusk to plain light

European M.Ps. have made it mandatory: nanomaterials in our cosmetics shall be listed as per 2013. This is an important step forward for regulation. Though they are widely used today in our cosmetics, in fact, in many of them (sunscreen creams, deodorants, anti-wrinkles creams, eye shadow, hair care, fragrances …), nano-ingredients keep a low profile on labels. This "low profile" has not been consistently the rule, and it will not very soon, but their "return" from light to shade and back needs clarification.

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