“The production of titanium dioxide requires large amounts of energy, which is an issue we must address. For example, we’re reducing our reliance on coal for electricity generation.

Kester, W. Carl, Robert R. Glauber, David W. Mullins Jr., and Stacy S. Dick. "E.I. du Pont de Nemours & Co.: Titanium Dioxide." Harvard Business School Case 284-066 ...

We speculate that titanium dioxide in cosmetics and sunscreens may adsorb gold particles in jewelry that occasionally contacts these areas and cause contact dermatitis on facial skin despite the ...