Davids
Expanding Dental Floss
Est. Price$9.95
9.7
Performance
Ingredient Safety
Meets the Welpr Standard
Buy Now
on Amazon
Certifications
Free From
Highlights
Cruelty-free
Refillable
Recycled materials
String floss
Expanding
Mint
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The Best PFAS-Free and Non-Toxic Dental Floss
We vetted dental floss against the Welpr Standard and here are our top picks.
Cofounder & Product Curator
Medical Reviewer, PhD
Here's what we look for:
- Confirmed PFAS-free with natural coatings like beeswax or plant-based waxes
- Silk or nylon construction, with silk preferred when available
- Transparent sourcing, materials, and manufacturing practices
The Best PFAS-Free Dental Floss
On Welpr, terms like "non-toxic," "safer," "cleaner," "healthier," and "vetted" are editorial labels based on our own standard for product assessment. They are not guarantees, certifications, or medical claims. Learn more.
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Bambo Earth
Mint Dental Tooth Lace Floss With Refillable & Reusable Glass Holder
Est. Price$6.97
8.2
Performance
Ingredient Safety
Meets the Welpr Standard
Buy Now
on Amazon
Free From
Highlights
Vegan
Cruelty-free
Recyclable packaging
Compostable packaging
Refillable
Recycled materials
Money-back guarantee
String floss
Waxed
Mint
WooBamboo
Biodegradable Silk Dental Floss
Est. Price$18.21
9.5
Performance
Ingredient Safety
Meets the Welpr Standard
Buy Now
on Amazon
Free From
Highlights
Vegan
Hypoallergenic
Plastic-free packaging
Compostable packaging
Recycled materials
String floss
Waxed
Mint
Certifications
Free From
Highlights
Recyclable packaging
Money-back guarantee
Floss picks
Mint
Boka
Cinna Mint Woven Dental Floss
Est. Price$6.99
8.9
Performance
Ingredient Safety
Meets the Welpr Standard
Buy Now
on Amazon
Free From
Highlights
Vegan
Cruelty-free
String floss
Waxed
Cinnamon
Desert Essence
Tea Tree Dental Floss
Est. Price$27.95
8.9
Performance
Ingredient Safety
Meets the Welpr Standard
Buy Now
on Amazon
Certifications
Free From
Highlights
Cruelty-free
Made in USA
String floss
Waxed
Tea tree
Tom's of Maine
Naturally Waxed Antiplaque Dental Floss
Est. Price$28.39
8.7
Performance
Ingredient Safety
Meets the Welpr Standard
Buy Now
on Amazon
Free From
Highlights
Cruelty-free
Money-back guarantee
String floss
Waxed
Mint
Terra & Co.
Brilliant Black Dental Floss
Est. Price$9.99
8.5
Performance
Ingredient Safety
Meets the Welpr Standard
Buy Now
on Amazon
Certifications
Free From
Highlights
Vegan
Cruelty-free
Recyclable packaging
Recycled materials
String floss
Waxed
Mint
Radius
Peppermint Dental Floss
Est. Price$11.49
8.4
Performance
Ingredient Safety
Meets the Welpr Standard
Buy Now
on Amazon
Certifications
Free From
Highlights
Vegan
Cruelty-free
Plastic-free packaging
Recyclable packaging
Money-back guarantee
String floss
Waxed
Mint
How to Swap to Non-Toxic dental floss:
Here's how to swap to non-toxic dental floss:
What to know about dental floss
Most conventional dental floss is coated with PFAS-based compounds (the same family of chemicals found in nonstick cookware) to help it glide between teeth. Because floss goes directly in your mouth and is used daily, what it's made of and coated with deserves a close look.
- PFAS coatings are common on floss labeled as "glide" or "smooth" — these synthetic coatings can leave residue in your mouth with every use.
- Welpr only approves floss that is confirmed PFAS-free and made with simple, transparent materials.
Check the floss you already use
Take a look at the floss you have at home. Check the packaging for any mention of materials, coatings, or ingredients. Floss that advertises a "glide" texture or slick feel is more likely to use PFAS-based coatings.
- Look for terms like PTFE, Teflon, or "smooth glide" on the label — these typically indicate PFAS coatings.
- If the packaging doesn't list materials or coatings at all, that lack of transparency is worth noting.
Use your current floss more mindfully
If you're not ready to replace your floss right away, that's okay. Flossing with what you have is still better than not flossing at all. A small adjustment can reduce how much coating residue stays in your mouth.
- Rinse your mouth with water after flossing to help clear any residue left behind.
- Prioritize replacing your floss before other oral care products since it sits directly against gum tissue, which absorbs readily.
Choose cleaner floss
Look for floss that is confirmed PFAS-free and made from simple, clearly listed materials. Natural options like silk floss or plant-based fibers coated with natural waxes (such as beeswax or candelilla wax) tend to be the cleanest choices.
- Choose floss with a short, transparent ingredient list — natural wax coatings, no synthetic fragrances, and no undisclosed blends.
- Click the button above to shop Welpr Approved dental floss.
Camille May
Cofounder & Product Curator
Camille May is the co-creator of Welpr and a guide for clean living. After selling her last company in the health food space, she went non-toxic while working to heal an autoimmune condition....
Olushola M. Awoyemi
Medical Reviewer, PhD
Olushola M. Awoyemi (aka Shola) is a board-certified toxicologist and a research scientist with a PhD in Environmental Toxicology. Shola's long-term ambition is to be recognized as a world-renowned expert in toxicology,...