“In the early 1900s, radium was more valuable than gold and platinum. As such, the term “Radium” was incorporated into the brand names of any number of products even when these products didn’t actually contain radium. The same was true for the term ‘X-Ray.'”
How To Be A Retronaut has a nice collection of early to mid-twentieth century consumer brands that tapped into a general public enthusiasm for anything related to atomic bombs and radiation. Those were simpler times, when happiness meant an “atomic meal” on every kitchen table and (usually faux-) radioactive products in every medicine cabinet.