Doramad Radioactive Toothpaste
The toothpaste was slightly radioactive because it contained small amounts of thorium obtained from monazite sands. Auergesellschaft used thorium and rare earths in making industrial products including mantles for gas lanterns; the toothpaste was produced as a byproduct. Its radioactive content was promoted as imparting health benefits, including antibacterial action and a contribution to strengthening the "defenses of teeth and gums".
- Eugen Merzbacher (April 2012). "Readers' Forum: Radioactive toothpaste and reversed helicity". Physics Today 65 (4): 10. doi:10.1063/PT.3.1500.
- "Doramad Radioactive Toothpaste (ca. 1940-1945)". Health Physics Historical Instrumentation Museum Collection. Oak Ridge Associated Universities. Retrieved 2011-10-01.
Doramad radioactive toothpaste was produced during World War II by Auergesellschaft of Berlin.