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duo Toothpaste Whitening Toothpaste Tablets

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duo Toothpaste

duo Toothpaste

Whitening Toothpaste Tablets

Glass-first packaging and a disclosed nano share. Unnamed lid and pouch materials are the only gaps.

1 / 10 Low plastic footprint $$$

Dentist-developed tablets in a printed glass bottle with compostable-stated refill pouches, replacing the plastic tube and pump systems.

How this score breaks down

Plastic in the product and its packaging Minimal plastic
Apothecary-grade glass bottle; refills in pouches the brand states are compostable, material not named; lid material not stated
Microplastic shedding and leaching Doesn't shed
None disclosed in the formula
End of life: persistence and recovery Recovers well
Recyclable, repairable, or genuinely recovered; low persistence.
Plastic-derived chemicals of concern Some concern
Some plastic-linked chemistry is possible.
Transparency and disclosure Partly disclosed
Formula published including the nano-hydroxyapatite share

Strengths

  • Glass bottle replaces plastic tubes and jars
  • Discloses its nano-hydroxyapatite concentration, which most brands hide
  • Refill pouches cut repeat packaging

Trade-offs

  • Lid and pouch materials not named
  • No third-party certifications to verify
  • Contains xylitol, toxic to dogs; store away from pets

What's inside

Pressed tablets with 5% nano-hydroxyapatite, xylitol and calcium carbonate, fully listed. Glass bottle with refills in pouches stated as compostable.

PartMaterial
BottleGlass, recyclable
LidNot stated
Refill pouchCompostable per brand, material not named

Free of Plastic bottle, fluoride, SLS (stated)

Packaging
Apothecary-grade glass bottle; refills in pouches the brand states are compostable, material not named; lid material not stated
Microplastics
None disclosed in the formula

Attributes

What this product is, at a glance.

Recyclable glass bottleCompostable refill pouches (stated, material unnamed)Nano-hydroxyapatite 5% (disclosed)Dentist formulated (stated)

Certifications

None listed. We only show independent third-party certifications we can verify with the issuing body, and this product does not currently hold any.

About duo Toothpaste

duo is a dentist-founded US toothpaste tablet brand sold in glass with a refill subscription.

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Melissa Walker, founder of Thriving Sustainably

Hi, I’m Melissa-founder of Thriving Sustainably

Melissa Walker is the founder of Thriving Sustainably. A mom who started reading the labels after learning how much microplastic ends up in our bodies, she co-leads the environmental pillar of a Fortune 500 company’s employee sustainability program and rates brands against public certification databases so families can lower their microplastic exposure without the guesswork.