Iron dioxide CI 77491, CI 77492, CI 77499

Iron oxides are compounds of iron and oxygen that have been used as coloring agents in cosmetics . These mineral pigments can be of different colors, but these are just mixtures of the three previously mentioned colors: black (CI 77499), yellow (CI 77492) and red (CI 77491. Iron oxides are even well tolerated by those with sensitive skin. They are non-toxic and non-irritating, and there are no studies showing them to be allergens or irritants.