Nanoparticles in Sunscreens are Safe

Recent studies suggest that we need not be concerned about nanoparticles in sunscreens. Researchers assessed exposure by the extent of nanoparticle zinc oxide (ZnO-NP) contained in sunscreens and other cosmetic products and found that the level of exposure and penetration is not sufficient to affect cell function, including metabolic state of skin cells or their morphology.

Eur J Pharm Biopharm 2013 Feb 28