Fullerenes, also known as nanoparticles, with an average size of 1/10,000 of a millimeter, have been introduced without any labeling into a growing number of Dr. Perricone's anti-aging products, particularly skin creams. These are touted as reducing wrinkles and firming up the skin surface. Fullerenes have also been introduced, and without labeling, into Dr. Perricone's products including Ceramic Eye Smoother, and sunblocks.
However, the use of nanoparticles in cosmeceuticals poses a generally unrecognized major public health hazard. Nanoparticles readily penetrate skin, and can invade underlying blood vessels and produce distant toxic effects, including brain degenerative disorders and nerve damage.