Noun
a white powder used as a pigment for its high covering power and durability
Source: WordNetA lipid bilayer can be deposited onto a solid surface, such as quartz, mica, gold, titanium oxide and other materials. Source: Internet
Plus, the base has a titanium oxide coating which gives it a pearlescent sheen, not to mention stronger stain-resistance than most. Source: Internet
What's more, BB creams generally contain zinc oxide or titanium oxide, physical sun blocks that have some built-in water-resistant properties. Source: Internet