由於其對於 UV 具有折射能力，同時又能抵日曬後的顏色改變，因此常用於防曬用品中，此外由於其可作為色素之特性，亦常用於需要白色相關的用途，在醫學美容上也有部份應用[2]。
[2] Wikipedia, the free encyclopedia, http://en.wikipedia.org.
Titanium Oxide等防曬成分,請標明<波長範圍>,謝謝~~
如果洗面皂有加這項成分要卸妝嗎?
安全，因為滲不進皮膚，即便滲入也不發生刺激或化學反應 (取自張麗卿 博客分享)
如果是一般的二氧化鈦是相對安全的物理防曬劑成分，如果是納米二氧化鈦的話，分子量小，會滲入皮膚，造成一定的危害。
它跟氧化鋅一樣都不會被皮膚吸收
致癌
tseng_hua
酸化チタン 中的日文漢字『酸化』翻譯成中文就是『氧化』的意思喔。
所以酸化チタン就是指氧化鈦。完整寫法應該是『二酸化チタン(英文: titanium dioxide)』、『単に酸化チタン(英文: titanium oxide)』。
例如中文的『氧氣』寫成日文漢字就是『酸素』喔。
kathychen0913
Titanium Oxide等防曬成分ˇ的<波長範圍>:
<img border="0" src="https://i1.read01.com/uploads/0DWF3dTR4f.jpg" >
樓上不要貼出內容農場的連結
Dior粉漾潤唇膏有的話，需要卸妝嗎？
Fast facts
Approved in: United States, Australia, Europe, Japan
Banned in: None
Best for: Sun damage prevention
Coral safe? Detectable levels but no harm found
Caution: Formulas may leave white cast on darker skin, and ingredient may be carcinogenic in powder form
Found in physical sunscreens
There are two sunscreen ingredients generally recognized as safe and effective, or GRASE, by the FDA, and both are physical sunscreen ingredients. (Note: the GRASE label also means that the FDA won’t be monitoringTrusted Source products with these ingredients.)
The first one, titanium dioxide, serves as a broad-spectrum UV filter (although it doesn’t block long UVA1 rays).
The FDA approves titanium dioxide for use in children older than 6 monthsTrusted Source, and research shows it’s generally safer than other sunscreens via skin exposure.
However, researchers also write that power and spray forms should be avoided as it may be hazardous. A 2011 reviewTrusted Source notes that titanium oxide nanoparticles through oral exposure are classified as “possibly carcinogenic to humans,” meaning only animal studies have been conducted.
Keep in mind this ingredient isn’t limited to sunscreen. It can also be found in SPF makeup, pressed powders, lotions, and whitening products.
https://www.healthline.com/health/beauty-skin-care/best-sunscreen-ingredients#titanium-dioxide