Titanium Dioxide
- Effective dose
- 25 %
- Evidence
- 5/5· Robust
Last updated June 1, 2026
What it is
Titanium dioxide is an inorganic (mineral) UV filter used in sunscreens, where it sits largely on the skin surface and absorbs and scatters ultraviolet light. It provides broad-spectrum protection against UVB and shorter-wavelength UVA, and is frequently paired with zinc oxide to extend coverage into longer UVA wavelengths. It is valued for being gentle on sensitive and reactive skin.
Benefits
Protects against sunburn and UV-driven skin damage and photoaging; used as a UV filter at concentrations up to about 25% (often combined with zinc oxide for fuller broad-spectrum coverage), with the finished SPF determining the level of protection.
When to take it
A daytime (AM) product, applied as the last step before makeup and reapplied roughly every two hours of sun exposure. As a physical broad-spectrum filter it is itself the sun-protection layer.
Side effects
Very well tolerated and a common choice for sensitive skin; the main cosmetic drawback is a visible white cast, which nano-sized particles reduce. Reapply regularly, as photostability and coverage degrade with wear.
Sources
Products containing Titanium Dioxide
No products in our database contain this ingredient yet.