0.1% Max

There are many uses of titanium dioxide that we don't know about because they were made exempt from being on the package in 1977, said Faber, who added that nothing much has changed since – other than the FDA approving some other uses of the color additive, such as expanding the use of mica-based pearlescent pigments (prepared from titanium dioxide) as color additives in distilled spirits over recent years.

Alterations in gut microbiota

EFSA's evaluation is related to the risks of TiO₂ used as a food additive, not to other uses.