Experts raise concerns over nanoparticles in cosmetics

Major concerns have been raised by the EU scientific committee on consumer products about integrating nanoparticles into cosmetics products. Its experts are highly influential in the development of EU health and consumer protection policy, and so the fears could lead to barriers to using nanotechnology in cosmetics. A detailed report from the committee concluded “there is inadequate information on hazard identification” on possible health effects in general; exposure assessment; uptake on normal and damaged skin; the absorption and transport of nanoparticles across membranes in the gut and lungs; possible accumulation of nanoparticles in organs; and the movement of nanoparticles via the placenta to a foetus.

Of particular concern was the lack of in vitro tests regarding nanomaterials, increasing the likelihood that animals could be used to test nanoparticle cosmetics ingredients. Of course under the EU cosmetics directive, animal testing of finished cosmetics is banned, and the committee noted: “only validated in vitro methods may be used but at present no methodology has been validated for nanomaterials.” In vitro tests for skin absorption may not work for nanoparticles. “There are large data gaps in risk assessment methodologies and with respect to nanoparticles in cosmetic products.”