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Original Whitening nHa Toothpaste

Plastic-free ● Fluoride-free ● SLS-Free

4.8
Rated 4.8 out of 5 stars
411 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.

Image sign

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 411 reviews
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411 reviews
  • CH
    Carol H.
    Verified Buyer
    Reviewing
    Original + 3 Bundle
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Good for your teeth and good for the environment

    I've been using these Duo tablets for a week or two and I love them. I'm letting my husband finish the last of our toothpaste in a tube and then he will switch over as well. No more tubes going in the landfill, no more chemical fillers; just a cute little brown bottle and recyclable refill packages when we need more.

    Was this helpful?
  • PG
    Paul G.
    Verified Buyer
    Reviewing
    Immunity Compostable Refill
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Teeth feel so much stronger

    My teeth are making a noticeable comeback in their strength and appearance.

    Was this helpful?
  • LM
    Lauren M.
    Verified Buyer
    Reviewing
    Immunity Compostable Refill
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    whole family loves it!

    kids and adults love the taste!

    Was this helpful?
  • JK
    James K.
    Verified Buyer
    Reviewing
    Immunity
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Duo immunity

    Makes me feel like I just left the dentist office. My teeth feel super clean.

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