EFSA has updated its safety assessment of the food additive titanium dioxide (E 171), following a request by the European Commission in March 2020. 

What does titanium dioxide do? 

4. Should I stop eating products that contain TiO₂?

Titanium dioxide (TiO₂) is a multifunctional semiconductor that exists in three crystalline forms: anatase, rutile, and brookite. Owing to an appropriate combination of physical and chemical properties, environmental compatibility, and low production cost, polycrystalline TiO₂ has found a large variety of applications and is considered to be a promising material for future technologies. One of the most distinctive physical properties of this material is its high photocatalytic activity (Nam et al., 2019); however, more recently it has attracted growing interest because of its resistive switching abilities (Yang et al., 2008).

Tinting(contrast to the sample)

For the production of titanium dioxide, the raw material of coatings, China coating Industry Association visited the production enterprises of titanium dioxide. During the visit, we found that Hebei Caixin Material Technology Co., LTD. (hereinafter referred to as Caiqing Technology) has done a lot of work in creating a green ecological industry in titanium dioxide production, and has achieved outstanding results.