Purified Aqua (water), Calcium Carbonate, Silica(friction type), Nano Hydroxyapatite, Hydrated Silica, Xylitol, Peppermint oil, Xanthan Gum, Sodium Cocoyl Glutamate, Potassium Gluconate, Coconut Oil. Fluoride-Free Cavity Protection: Ollie’s formula features 10% nano-hydroxyapatite, providing effective cavity prevention comparable to fluoride, without the potential drawbacks.