Did people’s teeth fall out? The Wikipedia entry doesn’t say. It also says something about Pepsodent having “irium” But the Pepsodent article says nothing about that.
this post was submitted on 31 Oct 2024
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The German Wikipedia article of Pepsodent is more enlightening: The name is composed of Pepsin, an enzyme for digestion of proteins, plus dent, for tooth. Like Pepsi cola, the toothpaste contained the enzyme, but as it only works in a acidic environment, i.e. a pH value below 5, which is too low for a toothpaste to be harmless for the teeth, it is useless. Thus in 1936 it was no longer contained.
Irium is a brand name of sodium lauryl sulfate, an organic surfactant that is responsible for creating the foam when brushing our teeth.
The Doramad toothpaste copied the style of the advertising from Pepsodent, not its Ingredients, as Pepsodent didn't contain radioactive Thorium compounds or alike.
Probably not, thorium generally speaking isn't nearly as active as the radium that was going into everything else at the time. Kind of why its still tolerated in welding rods, and gas mantles until recently. Nowhere near safe still to rub it all through your gob.