The Sydney Morning Herald reported on the finding of nano particles in our food supply here in Australia, despite no testing every carried out on the safety of these products by our food safety body.
When used as a base or colorant in a product, titanium dioxide becomes handy in formulas meant to offer a lot of brightness and opacity. Titanium dioxide is so pigmented, in fact, that it’s used not only in white and pastel-colored products but also in darker shades, as well.
In 2017, the Scientific Committee on Consumer Safety (SCCS) warned that they should revise their recommendations if any new evidence emerges in the future related to the potentially harmful effects of TiO2NPs used in a sunscreen formulation or if they can penetrate the skin. In fact, our work could contribute to this matter because it evaluated the skin penetration of a particular kind of TiO2NPs. [8]