The Food and Drug Administration issued two draft guidances April 20 on the assessment of the effects of nanotechnology on food and cosmetics safety. The draft guidance to the cosmetics industry describes FDA’s current thinking on the safety of nanomaterials in cosmetics. It cautions that standard safety tests may need to be modified, or new test methods may need to be developed. Public comment is invited, although official publication of the drafts has not yet been scheduled. F...