The 1930s saw the release of a product with the enticing name of "Scrotal Radiendocrinator," which promised users they could kick-start their shattered scrotums by leaving a radium-filled jockstrap on their junk and going to bed. We can't totally vouch for the scienceness of this product, but it's worth noting that its inventor died from bladder cancer -- a total coincidence, and definitely not a warning that maybe Geiger counters shouldn't need to be sold in adult boutiques alongside battery-operated sex toys and blow-up effigies of Clark Gable.
The Home Products Co. Denver, CO
There was, surprisingly, a solid rationale behind the madness. At this point, the scientific discovery of the day was that hot springs, which it was claimed could cure illnesses, were radioactive. Instead of waiting to hear more science, however, the medical-industrial complex immediately set about putting radium into a ton of health products, including water coolers and energy drinks like RadiThor. As radium is expensive, however, only the richest members of society could afford to partake, and that's why it never blew up into a pub(l)ic health crisis. The damage was reduced to a tiny population, comprised of people such as Eben Byers, an industrialist who downed two bottles of RadiThor every day for three years until his bones started disintegrating and he died in untold agony.