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Original Whitening nHa Toothpaste

Plastic-free ● Fluoride-free ● SLS-Free

4.8
Rated 4.8 out of 5 stars
380 Reviews

Our signature tablet toothpaste features clean ingredients tested to be both safe and effective— including nano-Hydroxyapatite (nHa) for its remineralizing and plaque-fighting properties, as well as vitamins C + E to support periodontal health while soothing and restoring your gums. Featuring an all-natural wild mint medley flavor.

  • Naturally whitens without peroxides
  • Reduces tooth sensitivity without numbing agents
  • Dentist formulated for a healthy oral microbiome 
Your subcription will include 1 glass printed bottle that holds 62 tablets + compostable refill pouches.

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Inside the tablet

nano-hydroxyapatite (5% concentration)
remineralizes teeth
xylitol (birch extract)
promotes saliva production
calcium carbonate
natural polish
sodium bicarbonate
natural polish
cellulose
provides structure to tablets
xanthan gum
protects against dry mouth
magnesium stearate
vegetable-derived powder lubricant
hydrated silica
natural polish
menthol
cooling, soothing sensation
natural flavor
peppermint, wintergreen, spearmint
vitamin C, vitamin E
gum health

TOOTHPASTE HIGHLIGHTS

Naturally whitening
Anti-sensitivity
Sustainable + vegan
Hydrating, silky foam
Travel-friendly + mess-free

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Vegan

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SLS-Free

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Dentist Created

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Cruelty-free

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Non-Toxic

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Fluoride-free

“What you brush 
with matters.”

Tooth enamel cannot repair itself from within, which means your toothpaste has an important job to do. We packed Duo with proven ingredients like nHa to remineralize teeth and promote vibrant oral health. Developed by dentists, better for everyone.

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Dr. Stevie Roberts, DMD

Dr. Robert Johnson, DMD, MD

Clean Ingredients

Fluoride-free tablet toothpaste that strengthens & whitens teeth, reduces sensitivity without numbing agents and supports the oral microbiome.

Nano-hydroxyapatite

A dentist-backed fluoride alternative that whitens and remineralizes enamel.

Vitamins C + E

Synergistic antioxidants that support periodontal health and soothe and restore gums

Learn more about the science

How to brush with Duo tablet toothpaste

Crush a tablet between your teeth

Wet your toothbrush

Brush to activate foam

Rinse and smile

Plastic-free toothpaste made easy

Save up to 33% and lower your carbon footprint with subscription refills (in compostable pouches) delivered right on time.

ORDER YOUR REFILLS or build a custom bundle

Reviews

4.8
Rated 4.8 out of 5 stars
Based on 380 reviews
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380 reviews
  • CC
    Cecilia C.
    Verified Reviewer
    Reviewing
    Original + 3 Bundle
    I recommend this product
    Rated 5 out of 5 stars
    13 hours ago
    Revolutionary!

    Duo has been a game changer for my oral health! My teeth feel stronger and cleaner and are whiter and brighter. And I no longer have the sensitivity I once had. I also love the clean glass bottle instead of nasty plastic tubes for myself, my family, and the planet! I will be giving Duo as gifts because everyone should experience this product!

    Was this helpful?
  • AG
    Abby G.
    Verified Buyer
    Reviewing
    Immunity
    I recommend this product
    Rated 5 out of 5 stars
    5 days ago
    Clean feel!

    It's only been a week or so but so far I like Duo! I get a cleaner feel after brushing with these compared to regular toothpaste.

    Was this helpful?
  • BP
    Bridget P.
    Verified Buyer
    Reviewing
    Immunity
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    I actually like it

    I’m a sucker for trying new things. And I actually like these toothpaste pills! You only need one. I guess the cool factor is high because it really is different than using paste. I would imagine these are easier to take when you travel also.

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  • SD
    Sarah D.
    Verified Buyer
    Reviewing
    Sleep Compostable Refill
    I recommend this product
    Rated 5 out of 5 stars
    3 weeks ago
    This stuff works!!!

    It helps with my night regimen and helps me fall asleep faster with a great minty lavender flavor!

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