What it is
Titanium Dioxide is a white mineral.
What it does
Titanium Dioxide is often used in sunscreens because it reflects and scatters UV radiation, protecting from all UVB and short UVA rays. In sunscreens, it can be used in concentrations up to 25%.
In addition, Titanium Dioxide gives opacity and a white colour to cosmetics.
It is also used as a thickener.
Titanium Dioxide is generally considered to be safe. However, when used in sunscreens, it can leave an unattractive white cast on the skin.
(Source: Skin Therapy Letter, 1997, volume 2)
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