My current routine is roughly brush_teeth(toothpaste={mirasensitive, random_cheap_toothpaste}[day%2]) as you don't need to apply HAP every single day.

I find that I still have to be careful eating apples and lemons straight up. To protect myself I thoroughly swish and rinse water a few times shortly after consuming these fruits. If I don't do that, my teeth get extremely sensitive and it takes a few days for the hap to repair it again.

This is nano-hydroxyapatite, meant to be more effective than hydroxyapatite alone.

https://www.boka.com/

(P.S I'm not affiliated with boka)

Don't see any difference. I'm on a low carb diet and never eat things with added sugar anyways, so I assume that I could even drop toothpaste alltogether.

Also, my teeth have been yellow since as long as I can remember (and long before I got into coffee and tea) and the same is true for everyone in my family - and Boka didn't change that at all.

So... it is not doing me any harm, so far, but it is also not performing any miracles.

In fact, a year ago, they wanted to put in a filling for a minor cavity, but I wanted to put it off and by the time I went back they said it was gone.

edit: I also like the tabs because they're easy to travel with.