- Type
- Colourant / UV filter
- How serious
- Low severity
- Evidence
- Moderate evidence
Why it is flagged
Banned as a food additive in the EU because genotoxicity could not be ruled out. Topical use on intact skin is still considered safe.
Health topics it bears on
Sources
- Assessment - Titanium containing Substances Group Environment and Climate Change Canada and Health Canada, 2026
- 3. List of Permitted Food Colours (Lists of Permitted Food Additives) Health Canada, 2025
- Titanium dioxide (TiO2) as a food additive: Current science report Health Canada, 2023
- Safety assessment of titanium dioxide (E171) as a food additive European Food Safety Authority, 2021
Also listed as
e171, ci 77891, tio2, dioxyde de titane, dióxido de titanio, biossido di titanio, titandioxid