Duo Toothpaste Whitening Toothpaste Tablets
duo Toothpaste
Whitening Toothpaste Tablets
Glass-first packaging and a disclosed nano share. Unnamed lid and pouch materials are the only gaps.
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
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
Scored on our consumables method (consumables-v1, 2026-07-12). How we rank →
What's inside
Pressed tablets with 5% nano-hydroxyapatite, xylitol and calcium carbonate, fully listed. Glass bottle with refills in pouches stated as compostable.
| Part | Material |
|---|---|
| Bottle | Glass, recyclable |
| Lid | Not stated |
| Refill pouch | Compostable 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.
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 was created by married dentists Stevie Roberts and Robert Johnson, who met in dental school at Tufts University and now live on a floating home in Seattle, where she runs a dental practice and he works as an oral surgeon. Their company presses toothpaste into chewable tablets: bite one, brush, and it foams like paste with no tube in sight. Tablets come in a printed apothecary-style glass bottle, and refills arrive in pouches the brand states are compostable. The formula is fluoride free and built around nano-hydroxyapatite, an enamel-rebuilding mineral, at a disclosed 5% concentration, which most competitors keep secret. Duo lists no third-party certifications, so its vegan and cruelty-free claims rest on the brand's word, and the tablets sit at the premium end of toothpaste pricing.
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