Comments to OEHHA: Prioritization of Chemicals (Titanium Dioxide Nanoparticles) Share page: These comments address titanium dioxide nanoparticles, which serve an important function in numerous consumer products, including sunscreens. Download Document Issues: OTC Medicines Sunscreen Other Issues Proposition 65 Titanium Dioxide Related Posts Press Releases and Statements West Virginia Expands Access to OTC Cold & Allergy Medications Containing PSE Mar 6, 2024 Press Releases and Statements CHPA Statement on Valisure Citizen Petition Mar 6, 2024 Summary of State Sales Tax Jun 1, 2018