SCIENCE KNOWLEDGE
Titanium dioxide (E171) in food
Titanium dioxide, listed as E171, is not authorised for use in food in the EU. EFSA concluded in 2021 that it could no longer be considered safe as a food additive because a concern for genotoxicity could not be ruled out.
Published: · Sources reviewed:
Author and publisher: Blurrix Technologies s.r.o. · Editorial policy
What the evidence says
EFSA assessed titanium dioxide as a food additive, including evidence relevant to genotoxicity. Its 2021 opinion said that a concern for genotoxicity could not be ruled out and that E171 could no longer be considered safe as a food additive. That conclusion led to an EU regulatory change.
What EU law says
Commission Regulation (EU) 2022/63 removed the authorisation of E171 for foods. It allowed a limited transition for foods made under the earlier rules: they could be placed on the market until 7 August 2022, then remain available until their minimum-durability or use-by date.
What this does not establish
The EFSA opinion and EU rule address E171 used in food. They do not diagnose harm, calculate a person's exposure, or settle questions about titanium dioxide in cosmetics, medicines, or other uses. This record does not assess any individual product.
Limitations
This is a source-based summary of an EU food-additive assessment and regulation, reviewed on 2026-07-20.
Regulatory status can change; the linked official sources are controlling.
Sources
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