Hydroxyapatite SerumRemineralize, whiten, and protect. Naturally. Introducing our most concentrated oral care solution yet: the Hydroxyapatite Tooth Serum. Featuring 10% micro hydroxyapatite (HAP) in two particle sizes to deeply remineralize enamel and reduce sensitivity without fluoride. This powerful serum supports your oral microbiome, neutralizes acidity, and helps protect against cavities, all in one easy daily step. Non Toxic, Dentist Grade ProtectionPowered by 10%