Nano-hydroxyapatite for natural remineralization and whitening Hydroxyapatite is the mineral that makes your teeth strong, and nHa is a microscopic derivative of that mineral. nHa is highly effective at remineralizing teeth by naturally bonding with your enamel and dentin. And because it's what makes your teeth white, nHa also naturally whitens! Eliminate tooth sensitivity without numbing agents Sensitivity is caused by exposed nerves in your teeth's dentin pores. Our nHa naturally fills in those pores. No exposed nerves means no more sensitivity! healthy mouth hydrating foam means no bad breath, no cavities and a nourished microbiome. It's the plastic-free, sustainable choice comes in apothecary-grade glass bottles - that means no more microplastics for you, and no more waste for the planet.