The discovery is cool, but whoever edited this press release added some weirdness. There’s no suggestion in the article that the toothpaste would be made from “your own hair”, and it has nothing to do with the “root”. Is that just a misspelling of “route” or is it a feeble attempt at a tooth pun?

This is brilliant! How cool would it be if we had to solution to tooth decay built in this whole time?

Fingernails are also made of keratin…