nHA is prohibitively expensive to produce and the most effective process that produces the smallest particles is patent-protected by Sangi, and therefore many nHA toothpaste brands only contain a fraction of the concentration used to produce the effective results reported in academic studies (1-2% instead of 10%).
If keratin toothpastes can be produced more economically they could be a better option for mass adoption. For anyone who wants to try nHA toothpaste for remineralization, I can only recommend Sangi Apagard Royal toothpaste ($$$) but it does work quite well when used as directed.
1 tube lasts me nearly 3 months. Eat at home one time and you're good. I'm not saying people who are living paycheck to paycheck where $15 makes a big difference between choosing rent or food or toothpaste, but that should have been obvious I think. Fluoride works of course, but I think in the long run nHAP works better and is probably better for your teeth. I know it fixes all my sensitivity issues and I haven't had a cavity in 10 years since I started it, was using novamin before that.
