[curiouscats]

Enamelon Toothpaste from the 1990s:

https://www.ebay.com/itm/127083185095

"proven to strengthen tooth enamel" I remember researching the stock and deciding not to buy.

Patents from the 1990s https://patents.justia.com/assignee/enamelon-inc

It seems the company is still around https://www.enamelon.com

[throwaway2037]

What about "Sensodyne Pronamel"? There is usually someone in the comments raving about its effects.

[robinson7d]

I think usually they rave about Novamin, which, at least in Canada, isn’t in the Pronamel line IIRC but in other Sensodyne branded toothpastes.

_EDIT: “repair and protect”_

[mikaraento]

I can be that someone this time. The ”repair and protect” version has helped my low-level toothache.

[archon810]

I've actually been occasionally using Enamelon because it was recommended by my dentist for sensitivity and I think it actually works.

I'm going to try Boka as recommended above though, it seems like a more updated and modern solution.

[omlet]

Did you tried :D ?