Smile Brighter: Why Micro Hydroxyapatite Is the New Star of Your Toothpaste

by Red Seal
Author
Read bio
Blog Images Naturopath (3)

If you’ve been exploring the category of natural toothpaste options, you may have come across a mineral with a scientific-sounding name: Hydroxyapatite. Despite its complex title, it’s actually a form of calcium phosphate - a substance your teeth already know well.

A Mineral Your Teeth Already Love

Hydroxyapatite makes up about 97% of your enamel, the hard outer layer that protects your teeth. It’s also found in your bones, making it one of the most biocompatible ingredients you can brush with. When you brush with a toothpaste formulated with hydroxyapatite, you’re essentially replenishing your enamel with the same mineral it’s made of - a nature-inspired way to support your smile.

Micro vs. Nano: What’s the Difference?

You might see terms like “nano hydroxyapatite” or “non-nano hydroxyapatite” floating around. These refer to the particle size of the mineral. Nano particles are very small and designed for close interaction with the tooth surface. Non-nano particles are larger, which means they stay on the enamel surface, supporting tooth mineralisation by creating a layer that supports everyday care. Both forms are used in oral care, but non-nano is often chosen for those who prefer a more traditional approach to surface protection.

At Red Seal, we use micro hydroxyapatite (mHA) - a particle size that’s small enough to be effective yet designed to stay where it’s needed most: on the surface of your teeth. This allows it to support enamel health in a way that’s both gentle and effective.

Our mHA is formulated with nature-identical mineral particles, making it ideal for daily use and trusted by those who value clean, conscious oral care.

Made in New Zealand, Trusted Worldwide

Our toothpaste is proudly made in New Zealand, where quality, safety, and sustainability are part of everything we do. Known for its clean environment and high manufacturing standards, New Zealand is a place where natural innovation meets trusted science. When you choose our toothpaste, you're choosing a product formulated by experts, backed by research, and built on integrity.

What You’ll Love About It:

  • Brightens your smile
  • Supports your smile with mineral-rich care
  • Supports enamel mineralization
  • Engineered by nature, perfected by science

A Clean, Conscious Choice

Whether you're brushing to support enamel mineralization, brighten your smile, or simply want a toothpaste that feels good and works hard, our formula is designed to deliver.

Ready to experience the mineral-rich difference? Try our New Zealand-made micro hydroxyapatite toothpaste and let your smile shine.

Shop now on Amazon