Is it just me, or have you also noticed more and more natural toothpastes featuring Hydroxyapatite (HA) recently? This mineral-based ingredient has been gaining significant attention in the natural dental care world, and for good reason. I've done a deep dive into the science and benefits of Hydroxyapatite to share everything you need to know.
What is Hydroxyapatite?
According to Odontology, a peer-reviewed international journal of dental science, Hydroxyapatite (HA) is the main mineral component that makes up 97% of our tooth enamel and about 70% of our bones. It’s a naturally occurring mineral that plays a major role in bone and tooth health.
As an additive in toothpaste, the Environmental Working Group (EWG) gives Hydroxyapatite a score of 1/10, the lowest risk rating.
Australia Fair Dental Clinic also highlights that Hydroxyapatite is “a calcium phosphorus compound, which can be found in our teeth, bones, and saliva.” Fun fact: over 97% of our teeth are made of this mineral!
Benefits of Hydroxyapatite in Toothpaste
Natural brands like MooGoo, Grants and Grin all use Hydroxyapatite for its ability to remineralise teeth, restore enamel, and gently brighten. Clinical studies back this up. For example, Odontology notes that Hydroxyapatite “provides immediate repair of surface enamel defects,” while other reviews show it can whiten teeth and help prevent sensitivity without harsh abrasives.
Can Hydroxyapatite Replace Fluoride?
It’s a common question. In a 2019 study published in the British Dental Journal Open, researchers found that 10% Hydroxyapatite toothpaste had comparable efficacy to 500ppm fluoride toothpaste for remineralising early tooth decay.
And a more recent 2024 review in the Journal of Dentistry concluded: “Hydroxyapatite is an ideal substitute for fluoride in toothpaste and mouthwash.” For those avoiding fluoride, this is good news.
A Quick History Lesson
Hydroxyapatite was first used in dentistry by NASA in the 1970s to help astronauts who were losing minerals in space. In 1978, a Japanese company patented its use in toothpaste, and it became widely used in Japan for enamel repair and to fight decay.
What About Nano vs. Non-Nano?
Some toothpastes use nano-Hydroxyapatite (nHA), which uses small particles that can fill in micro-scratches and tiny holes in the enamel surface. These man made nano-particles were originally developed to closely mimic the structure of natural enamel and allow for more targeted remineralisation.
The Clean Nectarine Guide to Hydroxyapatite Toothpaste
Here are 6 natural toothpastes with Hydroxyapatite to try. I'm currently using the Grants toothpaste, and my teenage kids are using MooGoo. If you have younger children, the Jack n Jill Tooth Sparkles are such a clever idea!
1. Grants Whitening +HA Natural Toothpaste
This Australian-made, vegan formula combines Hydroxyapatite with baking soda and coconut oil. It has a refreshing mint flavour and uses non-nano HA for natural whitening.
Shop Grants Whitening +HA Natural Toothpaste
2. MooGoo Moothpaste Fluoride Free
This Australian-made, family-friendly formula now uses vegan, non-nano Hydroxyapatite with Xylitol and Stevia. It’s a gentle option that still supports enamel and mineral balance.
Shop MooGoo Moothpaste Fluoride Free
3. Davids Toothpaste Sensitive + Whitening Peppermint
Made in the USA, Davids uses its own Hydroxi™ mineral blend to help reduce sensitivity and strengthen enamel. It's SLS-free and naturally flavoured with pure peppermint oil.
Shop Davids Sensitive + Whitening Toothpaste
4. Grin Pro Toothpaste Enzyme Whitening
This enzyme-rich formula uses fruit extracts, baking soda, and Hydroxyapatite to gently whiten and protect teeth. It's suitable for daily use and great for adults and teens alike.
5. Jack n Jill Tooth Sparkles
For kids 2+, these chewable strawberry-flavoured tablets contain Hydroxyapatite, calcium, and Vitamin D. They're sugar-free and help stimulate saliva to neutralise acids.
Shop Jack n Jill Tooth Sparkles
6. Gem Triple Whitening Toothpaste – Coconut Mint
This high-performance, fluoride-free toothpaste features coconut-derived Hydroxyapatite for enamel remineralisation and Silica for gentle whitening.
Shop Gem Triple Whitening Toothpaste
Want to explore the full range? Browse all Hydroxyapatite toothpastes here.
Common Questions About Hydroxyapatite Toothpaste
Is Hydroxyapatite safe for kids?
Yes, it’s naturally occurring and non-toxic. Products like Jack n Jill Tooth Sparkles are specially formulated with Hydroxyapatite for children as young as 2.
Which toothpaste uses non-nano Hydroxyapatite?
MooGoo and Grants both use non-nano Hydroxyapatite in their formulations, making them ideal for anyone avoiding nanoparticles.
Can I use Hydroxyapatite toothpaste if I have sensitive teeth?
Absolutely. Davids Sensitive + Whitening Toothpaste is a great option for sensitive teeth, combining Hydroxyapatite with a soothing peppermint formula.
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