Assertion: sunscreen's nanoparticle | /r/Causes | adverse effects
Facets:
Source sentences:
text: In 2009, the Therapeutic Goods Administration of Australia updated a review of sunscreen safety studies and concluded: "The potential for titanium dioxide (TiO 2 ) and zinc oxide (ZnO) nanoparticles in sunscreens to cause adverse effects depend primarily upon the ability of the nanoparticles to reach viable skin cells.