Hydroxyapatite is the mineral that forms 68% of your dentine and 97% of your enamel. Nano-hydroxyapatite is a much smaller version that adheres naturally to existing hydroxyapatite, penetrating deep into the dentine tubules reducing sensitivity, while re-mineralizing and repairing any damaged enamel. In today’s society there is a lot of concern about the toxicity and long term effects of Fluoride and we have the answer for that. Not only can nano-hydroxyapatite help reduce sensitivity, but when used daily, it can replace your Fluoride toothpaste, reducing your exposure to toxic chemicals, while giving you the protection you need.