Our pickDr. Tung's Smart Floss
Our pick for floss. Natural cardamom-flavored expanding floss. PTFE-free and PFAS-free, the canonical clean floss for years.
- PTFE-free
- PFAS-free
- Cardamom flavor
- Expanding texture

floss
Budget alternative to nylon-and-PFAS floss. Plant-derived PLA fiber (corn-based) instead of nylon. Boka is a recognizable brand at the lowest price.
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Quick take
Why we picked it
Budget alternative to nylon-and-PFAS floss. Plant-derived PLA fiber (corn-based) instead of nylon. Boka is a recognizable brand at the lowest price.
Budget plant-based floss. Expandable woven texture, made from plants instead of nylon.
How we vetted this
RESEARCHEDWe recommend this product based on materials, certifications, and reputation. We have not yet bought or tested it in our own home.
If we move it into our home, we'll upgrade its tier and add first-person notes. If lab data emerges, we'll note that here.
Where to buy
Alternatives
Other picks in the same category we'd also consider, ranked the same way.
Our pickOur pick for floss. Natural cardamom-flavored expanding floss. PTFE-free and PFAS-free, the canonical clean floss for years.
Premium pickPremium dental-spa floss. Coconut-oil-infused, woven texture, designed for sensitive gums.
Recommended based on the criteria for the bathroom chapter, written down before we shopped. Read the methodology →