Original Compostable Refill

WHITENING TOOTHPASTE

4.8
Rated 4.8 out of 5 stars
381 Reviews

 

Our core formula is crafted for optimal oral and whole-body health. Duo Original is packed with rigorously tested clean ingredients including nHa (a dentist-approved fluoride alternative) and vitamins C + E to whiten, remineralize and reduce sensitivity. Made with only the cleanest ingredients, Original is the baseline for all our tablets, so no matter how you do Duo, you can brush with confidence.


Your subcription will include 1 glass printed bottle that holds 62 tablets + compostable refill pouches.

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Inside the tablet

nano-hydroxyapatite
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
stevia leaf extract
cavity-fighting plant extract

A higher standard

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

Dentist-recommended antioxidants and botanicals to restore and whiten enamel, soothe sensitivity, and balance 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

How to brush with Duo

Crush a tablet between your teeth

Wet your toothbrush

Brush to activate foam

Rinse and smile

Plastic-free made easy

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

Reviews

4.8
Rated 4.8 out of 5 stars
Based on 381 reviews
381 reviews
  • WH
    William H.
    Verified Buyer
    Reviewing
    Immunity Compostable Refill
    I recommend this product
    Rated 5 out of 5 stars
    5 minutes ago
    It works - and checks all of the boxes

    Consider, toothpaste without adding more plastic to your mouth and tissues that also actually works with great ingredients like xylitol that actually control the bad bacteria. This is what toothpaste/ dental powders should have always been.

  • CC
    Cecilia C.
    Verified Reviewer
    Reviewing
    Original + 3 Bundle
    I recommend this product
    Rated 5 out of 5 stars
    18 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!

  • 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.

  • 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.