NATHAN & SONS
Remineralizing
Gum
Whiten your teeth and repair your enamel
Repair your enamel: Remineralizes and reduces sensitivity.
100% Plastic Free: Made only with natural resins.
Sugar and Aspartame free: Dental health with clean sweeteners.
Train your Jawline: Firm texture for muscle toning.
Made with mastic, acacia & spruce extracts
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Forget about commercial chewing gums made of plastic and chemicals. UnderBrush is a functional gum created by Nathan & Sons with a 100% natural tree sap base (chicle, mastic, and spruce).
It is designed to:
- Remineralize your teeth.
- Strengthen your jawline.
- Freshen your breath with real ingredients.
All of this without microplastics, aspartame, or artificial colorants.
UnderBrush uses Nano-Hydroxyapatite, a mineral that seals micro-lesions in the enamel, reducing sensitivity and restoring dental health.
By chewing its firm, natural resin texture, you stimulate saliva production (the number one protector against cavities) and balance your mouth's pH thanks to xylitol and bentonite clay, which naturally polish and clean your teeth.
- Mastic Mint: Fresh mint with herbal resin notes; ideal for deep cleaning and long-lasting breath.
- Cinna-Mastic: Real spicy and woody cinnamon; a powerful antibacterial that helps control plaque.
- Berry: A blend of real fruits (strawberry, raspberry, and dragon fruit); a fruity flavor that activates and tones.
- Honey Bun: With Manuka honey and vanilla; a comforting smoothness that cares for your gum health.
To get the remineralization and toning benefits, chew one piece of UnderBrush after every meal for at least 15 to 20 minutes. Its firm texture is designed for prolonged sessions without losing consistency.
It is the perfect substitute for brushing when you are away from home or on the go.
Customers highlight the fast shipping and immediate effectiveness in oral cleaning. Many users note that, after just a few uses, tooth sensitivity decreases significantly and they positively value the absence of synthetic ingredients and plastics.
Amazon: With an average rating of 4.6/5 stars, buyers highlight the firmness of the gum as an excellent jaw exercise.
Most agree that the "polished tooth" feeling and fresh breath last much longer.
It is a viral phenomenon for its ability to tone the face. Users report a visible improvement in jawline definition.
Why people choose Underbrush
Helps strengthen teeth and reduce sensitivity naturally.
Clean formula with no artificial sweeteners or harsh chemicals.
Firm texture designed for longer, more active chewing.
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Can it really replace tooth brushing?
It is the perfect ally for on-the-go hygiene. Although it does not replace nighttime brushing, bentonite clay polishes the tooth surface and xylitol neutralizes acids after eating. It is ideal for when you are at the office, on a date, or traveling and don't have a toothbrush handy.
Is it safe to swallow the gum by accident?
Yes. Since it is made from a 100% natural tree sap base and contains no plastics or petroleum derivatives, it is biodegradable and safe for your digestive system in case of accidental ingestion.
Why is it more expensive than supermarket gum?
You are paying for a dental supplement, not a candy. Each piece contains medical-grade nano-hydroxyapatite and hand-collected natural resins. You are investing in your enamel health and avoiding chemicals that, in the long term, can damage your oral microbiota.
How does Nano-Hydroxyapatite help my teeth?
It is a natural mineral that makes up 97% of tooth enamel. While chewing, this ingredient helps remineralize weak areas, seal micro-fissures, and significantly reduce sensitivity to cold or heat.
Does it contain artificial sweeteners?
Not at all. We do not use aspartame or sucralose. UnderBrush is sweetened exclusively with Xylitol and Erythritol, which inhibit bacterial growth and help keep your mouth’s pH balanced.