Titanium dioxide is a natural mineral found naturally in the interior of ilmenite, rutile and anatase, in the form of amorphous white powder. Its chemical formula is TiO2. Zinc oxide is an inorganic chemical compound, it is found in nature as the zincite mineral. Its chemical formula is ZnO.
Cosmetic substances that allow protection from solar radiation thanks to their opacity, oppose a real screen to UV radiation through reflection processes and diffusion of harmful radiation.
