Ingredient
Nano-Hydroxyapatite
A biomimetic mineral that supports enamel remineralization and mild brightening.
How it works. Nano-scale particles of the same mineral that makes up enamel fill micro-defects on the tooth surface, improving optical properties and light reflection.
Advantages
- Supports enamel
- Reduces sensitivity
- Fluoride-free alternative
Potential disadvantages
- Whitening effect is optical, not bleaching
- Slower cosmetic change
Common concentrations. Typically 5-15% in toothpastes.
Safety. Considered safe. Widely used in Japan for decades.
Evidence strength. Moderate