Public Goods Natural Silk Floss
Silk floss in refillable glass that an independent EPA-certified lab found non-detect for PFAS - the third-party verification almost no floss can point to, at the lowest price of our picks.
The verdict: Plastic-free
A silk thread coated in candelilla wax with peppermint, packaged in a refillable soda-lime glass vial - a fully plastic-free floss, silk being a natural protein fiber that can't be a fluoropolymer. What sets it apart is proof: it was independently PFAS-tested and came back non-detect for organic fluorine in the 2024 Mamavation panel run by an EPA-certified lab. Third-party testing like this is the gold standard - most brands ask you to infer PFAS-free from the fiber, while this one has the lab result to show it.
Verification: Manufacturer confirmed
What it's made of
| Part | Material | Skin contact |
|---|---|---|
| thread | Silk | Yes primary |
| coating candelilla wax + peppermint | Candelilla Wax | No |
| vial | Soda-Lime Glass | No |
A refillable glass floss vial from Public Goods' house line: waxed silk thread dispensed from a small glass jar, with paper-packaged refill spools sold separately. The peppermint-scented candelilla coating gives it grip; the thread is a standard fine silk that works into tight contacts.
Pros
- Independently PFAS-tested - non-detect for organic fluorine at an EPA-certified lab
- Silk thread and candelilla wax make it plastic-free and PFAS-free by construction
- Cheapest of our picks, especially at the membership price
Cons
- Best price is tied to a Public Goods membership
- Fine silk can fray on rough restorations
Categories: Dental Floss
Sources
Every material claim above is backed by these. This is the scattered info we centralized.
- manufacturer https://www.publicgoods.com/products/dental-floss brand confirms silk thread, candelilla-wax coating, refillable glass vial
- other https://www.mamavation.com/beauty/toxic-pfas-dental-floss-tooth-floss.html independent lab test - Public Goods floss non-detect for organic fluorine
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