Hydroxyapatite Buy - : The EU Scientific Committee on Consumer Safety has specifically noted that rod-shaped nanoparticles are safe for use in toothpaste at concentrations up to 10%. Top Product Recommendations Hydroxyapatite (HA) is a naturally occurring mineral that makes up and 70% of dentin . Long used as the "gold standard" of oral care in Japan for over 40 years, it has recently gained significant popularity in North America as a non-toxic, biomimetic alternative to fluoride. Why Buy Hydroxyapatite? hydroxyapatite buy : It restores lost calcium and phosphate to the enamel, effectively "filling in" microscopic cracks. : The EU Scientific Committee on Consumer Safety Consumers typically choose hydroxyapatite for three primary reasons: Why Buy Hydroxyapatite The following brands are frequently recommended by dental professionals and available at major retailers: : By sealing exposed dentinal tubules (tiny pathways to tooth nerves), it can provide faster relief from temperature sensitivity than fluoride.