Titanium dioxide (TiO2), the naturally occurring oxide of titanium which generally comes from rutile & anatase. It is the most widely used white food coloring, and also finds application in cosmetics, paints and coatings for its brightness, opaqueness and high refractive index (ability to scatter light). When used in food, TiO2 is safe, natural, vegan, halal, kosher and gluten-free with the European food additive number E171.
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