There's also nano-hydroxyapatite (n-Ha), a bioactive form of calcium apatite that has been found to stick to dentine and help remineralize your teeth [1] [2].

There's also nano-hydroxyapatite (n-Ha), a bioactive form of calcium apatite that has been found to stick to dentine and help remineralize your teeth [1] [2]. It's popular in Japan, where it's even added to things like sports drinks. It's not easy to get in the West yet. The only toothpaste I know with n-Ha is Boka [3], and there's a more expensive Japanese one on Amazon called Apagard Premio [4]. [1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4252862/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4252862/ [2] https://www.sciencedirect.com/science/article/pii/S0300571211000832 https://www.sciencedirect.com/science/article/pii/S030057121... [3] https://www.boka.com/products/ela-mint-toothpaste https://www.boka.com/products/ela-mint-toothpaste [4] https://www.amazon.com/Apagard-Premio-toothpaste-nanohydroxyapatite-remineralizing/dp/B0016GCZSC https://www.amazon.com/Apagard-Premio-toothpaste-nanohydroxy...