★★★★★ 5
TLDR product abides by the SCCS's standards, makes my teeth less sensitive, just too expensive
Size: 3 Ounce (Pack of 1), Set name: Adult Mint Extra Strength, Size: 3 Ounce (Pack of 1), Set name: Adult Mint Extra Strength
This review is very important for me to write, as researching products for health typically stresses me out immensely when there is conflicting information. Nano-hydroxyapatite toothpaste is no exception to this, so if I can save someone some time and stress in this age of overwhelming, conflicting medical information, I will.
I don't use fluoride and was using Tom's toothpaste for a while. My tooth chipped on a mug (second time in my life), and I started stressing about my teeth being "weak." That was when I began researching how to strengthen them, and learned about remineralization and how fluoride helps with that. I learned about Nano-hydroxyapatite (nanoHAP) as an alternative, and essentially that 10% nanohap in the toothpaste was necessary for efficacy. I ordered an affordable (ish) one on Amazon, we'll call it Brand A, and went about my life.
Unfortunately, later on, I learned of concern in the scientific community about nano particles crossing the blood brain barrier, leaking into the bloodstream, and overall just potentially being harmful. I'd already been using the Brand A for 6 months and was afraid of any damage I may have done. I went back to digging.
The FDA has not approved nanoHAP in toothpaste as of now, but I haven't always waited for them to catch up to research to try new things when it comes to my health. In this instance, however, I was definitely looking for someone more knowledgeable than me to guide me, as I was overwhelmed and STRESSED (my health is just one big rollercoaster ride, so I burn out quickly when it comes to health decisions.) Finally, I found that the European Commission's Scientific Committee on Consumer Safety made a decision on the safety of nanoHAP in toothpaste, stating:
"Based on the data provided, the SCCS considers hydroxyapatite (nano) safe when used
at concentrations up to 10% in toothpaste, and up to 0.465% in mouthwash. This safety evaluation only applies to the hydroxyapatite (nano) with the following
characteristics:
- composed of rod-shaped particles of which at least 95.8% (in particle number) have an
aspect ratio less than 3, and the remaining 4.2% have an aspect ratio not exceeding 4.9;
- the particles are not coated or surface modified"
It turns out, Brand A's nanoHAP toothpaste used needle-shaped (not rod-shaped) particles (NOT good.) I was now on a mission to find a safe nanoHAP toothpaste.
In the interim, I switched from the Brand A's nanoHAP toothpaste to Himalaya Botanique's Xylitol toothpaste (no fluoride or nanoHAP.) My teeth and gums became sensitive rather quickly. I was desperate to go back to nanoHAP, but most brands won't disclose the important information in the product pages, or even if you reach out and ask them, i.e. the percentage of nanoHAP (you want 10%), the particle shape (you want rod), etc.
I found Himalaya Botanique's extra strength nanoHAP toothpaste (they have a regular one which doesn't advertise it's % - it's only 2.5%.) I decided to email them and see if they'd answer some questions about the product.
Much to my relief, they responded with this:
"The nano-hydroxyapatite used in Himalaya’s toothpaste complies with the recommendations suggested by the European Union (EU) Scientific Committee on Consumer Safety (SCCS). Please note, this applies to both the shape of the nHA as well as the aspect ratio as recommended by the EU-SCCS.
Himalaya’s hydroxyapatite particles are currently nanoparticles < 100 nanometers (i.e., 0.100 microns), with a nano-rod shape having a width between 5-20 nm (typically close to 10 nm) and a length below 50 nm (typically between 30 to 40 nm)."
That was good enough for me; I bought it. The sensitivity in my teeth from the xylitol toothpaste went away quickly, so it appears to be effective.
It seems to whiten decently, nothing too drastic. I LOVE that the ingredients are all natural, though. It's minty and refreshing. It's not too thick or runny (took a pic trying to show texture and thickness), and my mouth feels clean after brushing.
My only, ONLY complaint is the price. That's why I'm docking a star. $19 for a single tube of toothpaste almost feels like elitism. I'm stretching that tube as FAR as it will go.
I hope this review was helpful. There are lots of studies you can check out regarding nanoHAP, but I hope I summarized the important parts here. Happy brushing!
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Reviewed in the United States on June 26, 2025
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