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Rebuilds with the real thing
Nano-hydroxyapatite is the mineral your enamel is already made of. At 10%, in rod-shaped form, it works with your teeth to support remineralization every single brush.
10% Nano Hydroxyapatite Toothpaste, Fluoride-Free, SLS-Free, 4.5 oz
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How to use this one
How to use this one
Dosage
Dosage
What it's made of
What it's made of
You just found the good one
The toothpaste that finally gets everything right.
10% rod-shaped nano-hydroxyapatite, the exact mineral your enamel is already made of. No fluoride. No SLS. No fillers. Independently tested by SGS, one of the world's most trusted labs, and proven to be among the cleanest toothpastes in America. This is the upgrade your mouth has been waiting for.
10% nHA
Fluoride-free
SLS-free
SGS lab tested
Zero mercury
Why you'll switch
Three reasons this becomes the only one you buy.
Most toothpaste asks you to settle. Strong but harsh. Natural but it does nothing. Nudge was built so you never have to choose.
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Clean of what you don't want
No fluoride. No SLS. No artificial dyes or sweeteners. No fillers padding the tube. Every ingredient is there because it earns its place.
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A brush you look forward to
Real botanical and fruit flavors, a gentle clean with no harsh foam, and a smooth finish. Four flavors the whole family reaches for.
The science
Your teeth are already made of this.
Hydroxyapatite is the mineral that makes up 97% of your tooth enamel. Not a synthetic compound your body has to interpret. The actual building block of the structure you want to protect.
Nano-hydroxyapatite has been trusted in professional dental care in Japan since 1978, with a growing body of peer-reviewed research behind its role in enamel support, sensitivity comfort, and surface remineralization.
Nudge gives you the form and the strength the research points to. 10%, rod-shaped, disclosed on the label.
View peer-reviewed sources +
Limeback et al. (2021)Open full text
Paszynska et al. (2023)Open full text
O'Hagan-Wong et al. (2021)Open full text
Educational only. Not medical advice. This product is cosmetic oral care and is not intended to diagnose, treat, cure, or prevent any disease.
Rod-shaped particles
Built to match real enamel.
Rod-shaped nano-hydroxyapatite mirrors the crystalline structure of natural enamel more closely than spherical alternatives, so it integrates beautifully with the tooth surface.
10% concentration
The strength the research points to.
10% is the concentration examined in clinical studies on enamel remineralization. It is the sweet spot, and it is exactly what's in every tube of Nudge.
Works with your enamel
It joins your teeth, not just coats them.
Because nHA is identical to the mineral your enamel is made of, it integrates directly into the tooth structure, filling microscopic gaps and supporting the enamel itself.
The formula
10% nHA. On the label. Every ingredient earns its place.
Plenty of brands whisper their nHA number or skip it entirely. Nudge puts 10% right on the tube. Rod-shaped. Verified. And nothing else in the formula is there to cut cost or pad a label.
The hero
Hero ingredient
Nano-hydroxyapatite
10% rod-shaped nHA
The mineral your enamel is already made of. At 10% concentration, in rod-shaped form, it integrates with the tooth surface to support remineralization with every brush.
Base
Water
Purified carrier
Carries every ingredient evenly across every surface. Purified for consistency.
Polishing agent
Calcium carbonate
Gentle mineral polish
Naturally occurring mineral that gently lifts surface dullness without abrasion.
Texture agent
Silica
Clean finish
Supports a clean finish and helps the formula rinse away completely after brushing.
Humectant
Glycerin
Plant-derived
Plant-derived. Keeps texture smooth and spreadable from first squeeze to last.
Sweetener
Xylitol
Plant-sourced, no sugar
Plant-sourced. Clean taste without sugar or artificial sweeteners.
Cleanser
Sodium cocoyl glutamate
SLS-free coconut cleanser
Coconut-derived. Lifts debris without SLS, harsh foam, or irritation.
Botanical
Aloe barbadensis
Gentle on gum tissue
Keeps the brushing experience gentle on gum tissue.
Antioxidant
Tocopherol
Vitamin E
Keeps the formula balanced, stable, and gentle through every brush.
Full ingredient list by flavor
Water (Aqua), Calcium Carbonate, Silica, Glycerin, Nano Hydroxyapatite, Hydrated Silica, Xylitol, Citrus Aurantium Dulcis (Orange) Peel Oil, Sodium Cocoyl Glutamate, Aloe Barbadensis Leaf Juice, Tocopherol, Sodium Benzoate, Potassium Sorbate, Limonene
Water (Aqua), Calcium Carbonate, Silica, Glycerin, Nano Hydroxyapatite, Hydrated Silica, Xylitol, Flavor, Citrullus Lanatus (Watermelon) Fruit Extract, Sodium Cocoyl Glutamate, Aloe Barbadensis Leaf Juice, Tocopherol, Sodium Benzoate, Potassium Sorbate
Water (Aqua), Calcium Carbonate, Silica, Glycerin, Nano Hydroxyapatite, Hydrated Silica, Xylitol, Mentha Piperita (Peppermint) Oil, Sodium Cocoyl Glutamate, Aloe Barbadensis Leaf Juice, Tocopherol, Sodium Benzoate, Potassium Sorbate, Limonene
Water (Aqua), Calcium Carbonate, Silica, Glycerin, Nano Hydroxyapatite, Hydrated Silica, Xylitol, Cinnamomum Zeylanicum Bark Oil, Eugenia Caryophyllus (Clove) Bud Oil, Sodium Cocoyl Glutamate, Aloe Barbadensis Leaf Juice, Tocopherol, Sodium Benzoate, Potassium Sorbate
Independently lab tested
Don't take our word for it. Take the lab's.
We commissioned an independent U.S. lab and published the results, so you never have to take our word for it. Nudge came back among the cleanest toothpastes in the entire category.
Top 10% cleanest of 51 toothpastes independently tested. Zero mercury detected.
Nudge proactively commissioned and published its own SGS lab report, an exception in a category where most brands never test at all.
Zero
Mercury detected
Top 10%
Cleanest of 51 tested
SGS
World-class accredited lab
Every
batch
batch
Tested before it ships
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SGS North America Inc.
931 N 7th St, Harrisburg PA 17102 · Report ID: VEU3AP · Method: AOAC 2015.01
Sample collected Mar 4, 2026 · Reported Mar 16, 2026
Sample collected Mar 4, 2026 · Reported Mar 16, 2026
The easy comparison
Eight things that matter. Nudge checks all of them.
| What matters | Nudge | The category |
|---|---|---|
| 10% nano-hydroxyapatite, disclosed | Concentration often undisclosed | |
| Rod-shaped nHA particles | Particle shape rarely specified | |
| SLS-free formula | SLS present in many formulas | |
| Fluoride-free | Fluoride still standard in most | |
| No artificial dyes or sweeteners | Often present as filler | |
| Heavy metals tested by U.S. lab | Rarely tested or published | |
| Lab report publicly available | Almost never published | |
| Zero mercury detected | Most brands never check |
Who we are
Oral care is all we do.
Oral care is all we do.
That is the whole point.
No board members. No investors. No quarterly review telling us to stretch the formula or shrink the tube. Just the best toothpaste we know how to make.
Small batches. So we move fast and stay honest about what is in the tube.
No committees. Every decision goes into the product, not past an approval chain.
We listen. Customer feedback has made this formula better more than once.
Priced to keep. The largest tube in the category. A splash is all you need.
30Day Promise
Love it, or it's on us.
Brush with Nudge for 30 days. If it is not the best toothpaste you have ever used, tell us and we will make it right. No fine print, no hassle. The only risk is going back to what you used before.
Questions
Everything you'll want to know.
The science
What makes 10% the right concentration?
10% is the concentration examined in clinical studies on enamel remineralization. It is the strength the research consistently points to, and it is exactly what's in every tube of Nudge. Not a marketing number, the real one.
Why does particle shape matter?
Rod-shaped nano-hydroxyapatite mirrors the crystalline structure of natural tooth enamel more closely than spherical alternatives. That lets it integrate more effectively with the tooth surface as you brush. Shape is a functional advantage, and Nudge is built around it.
How is nHA different from fluoride?
Fluoride forms a protective layer on top of the tooth. Nano-hydroxyapatite goes further. Because it is identical to the mineral your enamel is already made of, it integrates directly into the tooth structure, helping fill microscopic gaps and support the enamel itself. It has been trusted in professional dental care in Japan since 1978.
The formula
Is it great for kids?
Yes. With supervised brushing, use a pea-sized amount and encourage spitting. For children under 2, check with your dental professional. Because nano-hydroxyapatite is biocompatible and there is no fluoride, families love it across every age, and the fruit flavors make brushing easy.
Why no SLS?
SLS is the foaming agent in many conventional toothpastes, and it can irritate gums for some people. Nudge uses sodium cocoyl glutamate instead, a gentle coconut-derived cleanser that lifts debris and leaves your mouth clean without the harsh foam.
The proof
Where can I see the full lab report?
Right here. Tested by SGS North America Inc, one of the most recognized accredited testing laboratories in the world. Report ID VEU3AP. March 2026.
View lab reportWhat does the 30 day guarantee cover?
Everything. Try Nudge for 30 days, and if it is not the best toothpaste you have used, reach out and we will make it right. Buying it is the easy part, and there is no risk in trying it.
Ready when you are
The research is done.
The research is done.
The formula is right.
This is the one.
10% nHA, lab tested clean, and the best your mouth has felt. Pick your flavor and make the switch.
30 day love it guarantee · Free shipping over $22 · Stock up and save more
Inside Nudge
Deep dives on ingredients, testing, and the story behind how we build toothpaste for people who actually care.
Why Your Nudge Toothpaste Didn’t Say 10% Nano Hydroxyapatite (And Why It Will Now)
Nudge toothpaste has always contained a true 10% nano hydroxyapatite formula, even though early packaging did not display the percent...
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Why Nudge Toothpaste Changed Texture
Nudge kept the same clean ingredients and real 10% nano hydroxyapatite but improved the texture over time based on real customer feedback...
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The Complete Guide to 10% Nano Hydroxyapatite Toothpaste: Benefits, Science, Safety, and How to Choose the Right One
There are not many ingredients in oral care that have caused a genuine shift in how people think about toothpaste. Nano hydroxyapa...
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10% nHA Science, Safety and Enamel Repair
Nano hydroxyapatite is the future of oral care. It is safe, effective, and backed by science. With 10% nHA, Nudge toothpaste is designed ...
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Why Nudge Is the Best Affordable 10% Nano Hydroxyapatite Toothpaste
Nudge is more than toothpaste. We own the process from start to finish and deliver a true 10% nano hydroxyapatite formula without inflate...
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How to Get Rid of Bad Breath for Good: What Actually Works (and What Doesn’t)
Discover the real causes of bad breath and how to fix it naturally. Learn how diet, hydration, and a fluoride-free toothpaste with nano h...
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Disclaimer: Nano-hydroxyapatite may support oral health, but results vary and this product is not intended to diagnose, treat, cure, or prevent disease.
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