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 Comments Comments Regarding Control of Nitrosamine Impurities in Human Drugs Dec 20, 2024 Press Releases and Statements Rates for Teen Abuse of OTC Cough/Cold Medication Remains Low According to NIDA Survey Dec 18, 2024 Pediatric Cough/Cold Dosing