Micro Vs Nano hydroxyapatite
Not all hydroxyapatite is the same.
Some brands use nano hydroxyapatite, which has extremely tiny particles. There are restrictions on nano particles due to safety concerns.
Truthpaste uses micro hydroxyapatite particles (1.5 microns).
Why this matters:
- Demineralised enamel tubules are around 2.5 microns
- Our micro-sized particles are small enough to penetrate the tooth surface
- While avoiding concerns around nanoparticles
This allows hydroxyapatite to enter weakened enamel and support remineralisation.