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CAS: 1345-05-7

Titanium dioxide makes products, like toothpaste, white and bright. It's also used in makeup, sunscreen, plastic, and paint. (Photo Credit: iStock/Getty Images)

The California plaintiff is apparently not the only one concerned about titanium dioxide. The European Union recently banned its use citing concerns about serious health consequences.

Titanium dioxide is added to some food packaging to preserve the shelf life of a product.

EINECS accession number: 215-715-5

CSPI says it might reconsider its rating if specifications for food-grade titanium dioxide in the U.S. are updated to ensure nanoparticles are minimized, and new studies are conducted to assess its capacity to cause cancer or other health problems.