10% rod-shaped nano-hydroxyapatite. No SLS. No fluoride. No filler. Independently tested by a U.S. lab and published because you should be able to verify what goes in your mouth.
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 are trying to protect.
Nano-hydroxyapatite has been used in professional dental care in Japan since 1978. A growing body of peer-reviewed research has examined its role in enamel support, sensitivity reduction, and surface remineralization.
The question was never whether nHA works. The question is whether you are getting enough of it, in the right form, to actually matter.
Rod-shaped nano-hydroxyapatite particles more closely mimic the crystalline structure of natural enamel than spherical alternatives, allowing them to integrate more effectively with the tooth surface.
Too little and the effect is negligible. Too much and the particles begin to aggregate, reducing efficacy. 10% is not arbitrary. It is the concentration examined in clinical studies on enamel remineralization.
Because nHA is chemically identical to the mineral your enamel is already made of, it integrates directly into the tooth structure, filling microscopic gaps and supporting the enamel itself.
Nudge contains 10%. Rod-shaped. Disclosed. Verified. Every other ingredient follows the same logic. There for a reason, nothing there to cut cost.
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.
Carries every ingredient evenly across every surface.
Naturally occurring mineral that gently lifts surface dullness without abrasion.
Supports a clean finish and helps the formula rinse away completely.
Keeps texture smooth and spreadable from first squeeze to last.
Clean taste without sugar or artificial sweeteners.
Coconut-derived. Lifts debris without SLS, harsh foam, or irritation.
Keeps the brushing experience gentle on gum tissue.
Keeps the formula balanced, stable, and gentle through every brush.
Swipe to see every ingredient
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, 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
Water (Aqua), Calcium Carbonate, Silica, Glycerin, Nano Hydroxyapatite, Hydrated Silica, Xylitol, Mentha Piperita (Peppermint) Oil, Sodium Cocoyl Glutamate, Aloe Barbadensis Leaf Juice, Tocopherol, 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
We commissioned an independent U.S. lab and publish every number. Not because we had to. Because you should be able to verify what you put in your mouth.
The only nHA brand that proactively commissioned and published its own U.S. lab report. One of the lowest heavy metal profiles in the entire category.
| Metal | Nudge | Most brands |
|---|---|---|
| Mercury | Not detected | 47% detected |
| Lead | 67x below limit | avg 200+ ppb |
| Arsenic | 18 ppb | 65% detected |
| Cadmium | 7 ppb | 35% detected |
Mineral-based ingredients like nano-hydroxyapatite, calcium carbonate, and silica are sourced from the earth. Natural minerals carry trace amounts of heavy metals by definition. This is true across the entire category. The difference is whether a brand tests for it and tells you. We do both.
No board members. No investors. No quarterly review telling us to stretch the formula or shrink the tube.
| What matters | Nudge | Most brands |
|---|---|---|
| 10% nano-hydroxyapatite, disclosed | Concentration often undisclosed | |
| Rod-shaped nHA particles | Particle shape rarely specified | |
| SLS-free formula | SLS common even in natural brands | |
| Fluoride-free | Most still fluoride-based | |
| 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 | 47% of tested brands had mercury |
You did not know there was a better option. Now you do.
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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.
