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Cosmetics incorporate a variety of iron oxide-based materials. These include both conventional iron oxide inorganic pigments and specialized forms of iron oxides. But what exactly are they?

Iron oxide red is the most widely recognized iron oxide pigment. Its applications and properties are well understood by users. In contrast, specialized iron oxides are familiar mainly to specialists.
Iron oxide black, another type of iron oxide pigment, differs fundamentally from iron oxide red. It belongs to the category of ferric oxide and is commonly used in magnetic ink applications, where it plays a significant role.