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Toxic PFAS Chemicals in Dental Floss -- Woman Looking at Dental Floss

Answer:

What are PFAS (a.k.a., "forever chemicals")?

Per- and Polyfluoroalkyl Substances (PFAS) are a class of man-made chemicals used in the manufacture of a wide range of industry and consumer products such as Teflon, dental floss and personal care products and food packaging. Dubbed "forever chemicals" because their unusual persistence, PFAS break down slowly, or in some cases, not at all, and can accumulate in the environment (water, air, and soil).

Animal studies and observational studies in people have linked exposure to certain PFAS to negative health effects such as altered immune and thyroid function, liver disease, lipid and insulin dysregulation, kidney disease, adverse reproductive and developmental outcomes such as low infant birth weights, and cancer (Fenton, Environ Toxicol Chem 2021; EPA 2018; CDC 2020). Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) are two of the most common, and most widely studied PFAS.

As discussed in the full answer, certain regulatory agencies have proposed and/or set reference values for toxicity for certain PFAS, although more research is needed to determine the exact effects of specific PFAS on human health, and at what exposure levels these may occur.

PFAS in Dental Floss and Other Dental Products

Some brands of dental floss and other dental products are made with PFAS, including the common PFAS known as polytetrafluoroethylene (PTFE), to reduce friction, while others are made with materials such as nylon, polyethylene, ultra-high-molecular-weight polyethylene (UHMWPE), silk, or bamboo fiber, none of which would be expected to contain PFAS. Unfortunately, labels on dental floss are not always clear as to whether or not they contain PFAS.

Sign in as a ConsumerLab member to find out which of dental flosses, flossers, and interdental brushes may contain PFAS and which do not. Also, learn how companies responded when we asked them if their dental flosses contain PFAS, and learn our Top Picks among PFAS-free dental floss, floss picks, and dental tape. Brands discussed include Bambo Earth, Boka Ela, Burst, Cocofloss, Colgate, Crest Glide, CVS Health, Dentek, Dessert Essence, Dr. Rams, drTung's, EcoRoots, Equate, Etee, GUM, Holy Rose, Johnson & Johnson (including Listerine and Reach/Reach POP), Kroger, Oral-B, Piico, Plackers, Platypus, Public Goods, Quip, RiseWell, Rite Aid, Signature Care, Smart Life, Smartly (Target), Solimo (Amazon), Stim-U-Dent, T Smile, TePe, The Doctor's, The Humble Company, Thrive Market, Tom's of Maine, Truecity, Up & Up (Target), Wellnesse, WooBamboo, and Wowe.

PFAS in Food, Water, and Air

Find out about PFAS in processed foods and seafoods, such as canned clams.

Also find out about PFAs, in drinking water from public water systems and private wells, as well as from bottled water. Also learn about the U.S. EPA's federal regulation limiting PFAs in public drinking water, and how concentrations of PFAS in tap water from states including California, Colorado, Connecticut, Illinois, Massachusetts, New Hampshire, New Jersey, North Carolina, West Virginia, and others, compare to these standards. The details are all in the full answer.

Be sure to check out our Water Filter Pitcher Review for our Top Pick water filter pitcher for removing PFAS.

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181 Comments

abcs18
February 23, 2025

Unfortunately I have tried at least half a dozen of the PFAS-free recommended flosses and they all, without exception, break or shred in my teeth. Some of them I can't even get between my teeth. I have given up and am just using Oral-B, which works well and easily, and am trying to limit my exposure to PFAS in other areas.

Linda21443
December 16, 2024

Can you please review TePe interdental picks. My periodontist highly recommends this product.
Also, I have reverse osmosis water filter system from Apec. Their systems are not that expensive and easy to maintain. About $339 from Amazon for the High PH model. I have no financial interest in this company.

ConsumerLab.com
January 07, 2025

We've included some information about TePe EasyPick Dental Floss Picks in the following section of our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#tepe-picks

Bobbi Jo21435
December 15, 2024

Our household just purchased an iSpring RCC7AK under sink unit with a remineralization feature and I really hope this does the trick. Looking at our State's DOH site and PFAS map it looks like our municipal well has detected forever chemicals but not high enough for our State Action plan to do anything. I hope the iSPring unit will work for us. We've been using a Berkey for a long time and I'm not sure our last filter purchase was from a legit market. I don't trust my sweet Berkey anymore. Fingers crossed for the iSpring.

Sharyn21420
December 13, 2024

How about Reach POP floss. It states on the package that it's PFAS free.

ConsumerLab.com
January 07, 2025
Don21400
December 11, 2024

Issues with RO filtration include water consumption, for every gallon of potable water there's more waste water.

JoAnna21182
November 24, 2024

Depressing

Sandi21145
November 21, 2024

Any information about Stimudents (dental picks?) I've been using them for years.

ConsumerLab.com
December 17, 2024
matrixbud
June 17, 2024

I have been using Cocofloss now for several years. It is an unwaxed, woven floss. It is also vegan, completely recyclable (including packaging), and comes in several flavors. Being unwaxed, it was difficult to use at first but became easier and easier over time.

Chris20924
October 21, 2024

Nice floss, but it easily frays in my experience. (I do not have a financial stake in any floss product.)

Catherine21411
December 13, 2024

Cocofloss made of recycled polyester, which is a risk

Teresa21978
February 14, 2025

I tried the silk floss, but I have some tight teeth and it brok so much, I had to stop. Looking for something that won't break so easily and is not polyester or plastic. I have no finanial interest in floss products.

Marsha18907
March 05, 2024

I have a great reverse osmosis system and have the remineralization cartridge, though I often wonder if it really makes a difference. I take above average amounts of magnesium, calcium, etc. BUT, I do not use fluoride in any of my dental products (for over 25 years).

StatinStories.com
July 05, 2024

Yes, it certainly ought to be possible to "remineralize" water. But how is it possible to get rid of all the sodium fluoride? Or is it easier and cheaper to have such water delivered?

Barbi21423
December 14, 2024

Hi Marsha,
Would you recommend your RO system?
I also avoid fluoride.
Thanks & happy holidays.

Jean13812
December 01, 2023

I have used a floss for a couple of years now that I don't see mentioned here. I am wondering if you have any information about it: Radius Organic Vanilla Mint. I have very tight teeth and all CVS products get stuck between my teeth and leave remnants that are hard to remove. This Radius doesn't shred between my teeth. It is manufactured in Colombia.

ConsumerLab.com
January 02, 2024

It appears that Radius Organic Vanilla Mint floss is a nylon floss that is coated with carnauba wax. It also appears to contain flavoring agents such as coconut oil, spearmint oil, vanilla flavor, tea tree oil, and the sweetener erythritol.

Jayne21371
December 09, 2024

I was interested until I read about this product. "soft nylon is not biodegradable; like all forms of nylon, it is considered a synthetic polymer and will not break down naturally in the environment, meaning it will persist in landfills for a long time and can release harmful microplastics when it degrades slightly"

Charles13810
November 27, 2023

I have used the Reach flosser for years that has a handle with replaceable floss heads. I like it because I am able to get all of my teeth with ease. Furthermore, I can actually scrub my teeth with an up and down motion. My dentist always says "keep doing what you are doing"

ConsumerLab.com
December 01, 2023

Thanks for sharing! We've added information about whether Reach Access Flosser (now called Listerine Ultraclean Access Flosser) is PFAS-free in the following section of our article above: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#listerine-ultraclean

Carol13808
November 26, 2023

Are Gum Brand Picks acceptable? They are long and slightly curved.

ConsumerLab.com
December 01, 2023

We've added information about GUM Soft-Picks Advanced Dental Picks, which are the GUM brand picks that are slightly curved, to the following section of our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#gum-soft-picks

Roger21282
December 06, 2024

What about GUM Professional Clean Flosser Picks? I don’t see this specific product listed. Although I see other GUM products listed as acceptable.

ConsumerLab.com
December 16, 2024

Thanks for your question. We've added information about GUM Professional Clean Flosser Picks to the following section of our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#gum-professional-clean-flossers

steven13804
November 21, 2023

I see that Oral-B flosses fail the PFAS test. I have an Oral-B toothbrush. Do I need to be concerned ???

ConsumerLab.com
November 28, 2023
Jude Todd13802
November 21, 2023

Decades ago a dentist recommended dental tape rather than floss -- just generally better. I tried some and found eventually settled on REACH unflavored waxed tape. I *never* gets stuck between my teeth and has saved me from many tiny seeds and leftover dentist's fragile floss. When i checked the REACH website, it indicated that no PFAS are used.

ConsumerLab.com
December 06, 2023

Thanks for sharing your experience. As we note in the following section of our article, there is at least some clinical evidence that using dental tape is at least as effective as dental floss and, for some people, it may be easier to use: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#dental-tape

Barry13800
November 17, 2023

I tried the CVS Health Mint Waxed Dental Floss that you declare as your "top choice." It's terrible, one of the worst flosses I've ever used. It's very inexpensive, but it consistently shreds and breaks, making using it quite unpleasant. I don't know how you could pick this as a top choice.

ConsumerLab.com
December 06, 2023

Thanks for sharing your feedback. We've re-reviewed the performance of CVS and found that, although the CVS floss is thin, it does not slide between closely spaced teeth and has a grittier feel. We've updated our Top Pick floss, which can be found in the following section of our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#toppick-floss

Gregg13798
September 26, 2023

Oral-B said "Oral-B Glide Advanced Multi-Protection Floss" contains CPC (cetylpyridinium chloride) an antimicrobial agent. Is this a harmful ingredient?

ConsumerLab.com
January 05, 2024

In general CPC is considered to be safe in the small amount used in dental products. However, as noted in our article about toothpastes and other dental products, using mouthwash containing CPC can cause staining of dental restorations, especially when used long-term: https://www.consumerlab.com/answers/finding-the-best-toothpaste/toothpaste-ingredients/#mouthwash-with-crowns-veneers. We are not aware of evidence showing that floss containing CPC would have this same effect.

judith13788
September 16, 2023

the absolute best floss I've ever used is Dr. Tung's Smart Floss! gets my teeth so much cleaner than any commercial one!

Rajita13791
November 21, 2023

Yes, I agree. Only, when there is a very small space between teeth, it is hard to get it in between. Fortunately that mostly is the case only, wearing a temporary for a crown, or with a new crown for a short time.

Laurie13790
November 21, 2023

I agree. It’s the only floss I use now. It’s really made a difference for me. My dental hygienist noticed the change as well. Plus it’s in a cardboard, not a plastic, case.
I have no financial interest in Dr. Tung’s.

Sandy13796
November 22, 2023

And it comes in cardboard, not plastic packaging!

Mason13793
November 27, 2023

Yeah I second this, Dr tung's is the best! although they do use plastic in their packaging and now I know about other brands that don't I might switch

ConsumerLab.com
December 01, 2023

As we note in our article above, the "plastic" film used in drTung's Smart Floss packaging is actually a compostable material: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#drtungssmartfloss

Mary21176
November 24, 2024

Despite these comments, I am not a fan of Dr. Tungs Smart Floss. My teeth at the back are very close together, and it has gotten stuck and unable to slide thru umpteen times. I’ve had to use a tweezer to pull them through.
I do not have any financial interest in this company

Rosalinda13785
September 11, 2023

As a state-licensed drinking water treatment operator, I really appreciate your discussion about water filters. It’s quite the research project to find one that suits individual needs and circumstances sustainably! Your article makes that really clear. Thank you for the detail it deserves! And everything else I get to read here, for that matter!

ConsumerLab.com
September 11, 2023

Thank you for your kind words, we're glad you found it helpful!

Valerie13780
September 06, 2023

As a person who has bad reactions to all sorts of things that don't bother anybody else, could I request that you choose a Top Pick for a dental floss that is wax-free and mint-free?

Thanks for doing the research on dental floss and on so many other products -- I really appreciate it!

ConsumerLab.com
September 08, 2023

We've added our top choice for unwaxed floss to the following section of our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#unwaxed-floss

Rachel13781
October 09, 2023

As another person that reacts badly to mint, I totally recommend Cocofloss’s other flavors. I have used the vanilla and chocolate without issue!

Harlan13777
September 06, 2023

Another comment: I don't know how many manufacturing facilities there are that make dental floss but I would bet that they make several different brands at the same location. Same product but labeled differently. And that a brand might outsource its future production to a different facility, with a different wax composition, if it offers a lower price.

Harlan13775
September 06, 2023

Perhaps I'm missing it, but your top pick is NOT listed as being tested for PFAS, PTFE, or fluorine. Nor was the manufacturer queried. You only say it is unlikely to contain it as it's made from nylon which many of the others are also.

ConsumerLab.com
September 19, 2023

We've added additional information about our Top Pick floss to the following section of our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#toppick-floss

James13773
September 06, 2023

Since reading about the plastics in floss, which so many of us have dutifully used for years, I have switched to silk dental floss, with three ingredients: silk, beeswax and mint flavor. breaks less than standard glide type flosses too.

ConsumerLab.com
September 19, 2023

Thanks for sharing your experience! We've added information about WooBamboo silk floss to the following section of our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#woobamboo

Karen13771
September 06, 2023

What about PFAS in CocoFloss?

ConsumerLab.com
September 08, 2023
IRVING13766
July 21, 2023

Very interesting discussion! PTFE is routinely used in making permanent hernia meshes. Should these therefore be avoided or even removed if already placed? My understanding is that this stable substance is broken down by radiation.

ConsumerLab.com
July 25, 2023

We are not aware of studies evaluating the risk of PFAS exposure from PTFE mesh implants -- although there have been reports of other issues with these, such as mesh migration, but this can also occur with other types of mesh.

Anna13763
July 07, 2023

Thank you for this informative review! Can you consider reviewing the SimPure water filter? It is a Countertop Reverse Osmosis Water Filter that claims to remove heavy metals, PFOS/PFOAS, pesticides, carcinogens, and drug residues. Thank you for considering!

ConsumerLab.com
August 04, 2023

We discuss the SimPure Y7P-BW product in the following section of our article above, which also includes our Top Pick for countertop reverse osmosis water filters: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#countertop-reverse-osmosis

Pete13755
May 07, 2023

After reading this article, I found that a company called Cyclopure has a PureFast filter that fits Brita water filters and which claims to be specifically for PFAS removal. I ordered it, and it filters quite a bit more slowly than a standard Brita filter, but it would be interesting to have you guys test it.

ConsumerLab.com
May 08, 2023

Thanks for sharing your experience! We have posted information about the Purefast filter in our Water Filter Pitchers Review ( https://www.consumerlab.com/reviews/water-filters-review/water-filters/#purefast) and have reached out to the manufacturer for additional data on the filter's performance but have not received a response.

Pete13759
May 10, 2023

I saw that and was very impressed with how quickly you reacted! I use the filter because I drink Kirkland Alkaline water to help with acid reflux, and I realized I might be ingesting a lot of plastic for my trouble. It would be nice to verify their claims. Hopefully the alkalinity of the water doesn't affect filtration, but I don't know if filters are ever tested against alkaline water.

ConsumerLab.com
May 18, 2023

You may be interested in our discussion about the evidence for alkaline water for reflux, in our article about supplements and foods for acid reflux https://www.consumerlab.com/answers/which-supplements-worsen-acid-reflux/heartburn-acid-reflux-gerd/#water.

VA_RDH
June 28, 2023

CL that is terrific information. I noticed the dates are from May 2023. Is there any update since then about the filters and their capabilities?

Sarah13758
July 14, 2023

Has anyone tested refrigerator water filters for PFA/PFOs? I use one called Instapure in my 2008 Jenn Air refrigerator water dispenser. Direct copy from the Instapure web site: "NSF/ANSI P473, 401, 372, 53 & 42 Certified for PFOA/PFOS, Pharmaceuticals, Lead, VOCs & More!"
We use the filtered water from the fridge for all consumption. Our town has a PFA problem in the water supply and is building a new treatment plant to address it.

ConsumerLab.com
September 20, 2023

ConsumerLab has not tested refrigerator water filters, but results from a study that evaluated the effectiveness of these and other types of point-of-use water filters are summarized in the following section of our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#effectiveness-of-point-of-use-water-filters

Shant13751
May 03, 2023

It's difficult for readers to make decisions about PFAS because your article does not state the toxic level of PFAS in humans,, nor the effect on blood levels of using floss impregnated with these chemicals.

ConsumerLab.com
May 18, 2023

We've added information about blood levels of PFAS that may increase the risk of side effects in humans, and whether the use of PFAS-containing floss has been linked with these blood levels of PFAS, in the following section of our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#blood-levels-of-pfas

gwen
May 02, 2023

I use CVS Original dental floss but the tape instead of the floss. I don't see it listed as better not to use. Pls evaluate

ConsumerLab.com
August 30, 2023

According to a customer relations representative for CVS, CVS Dental Tape is made of PTFE.

eyal13740
May 02, 2023

You just added: Oral-B Glide Advanced Multi-Protection Floss, saying that it states that they don’t contain neither of the « Ps » .
But nowhere, on the package Costco sell, does it say anything about avoiding PFAS (or avoiding ANYTHING for that matter).

ConsumerLab.com
May 09, 2023

ConsumerLab reached out to an Oral-B representative for more information about Oral-B Glide Advanced Multi-Protection Floss. The details we've included were provided to us in their response.

Marlin13743
May 10, 2023

Didn't oral-B say that none of their flosses contain PFAS, even though it's clear that their Glide product in the earlier study had a high PFA concentration? How can we verify the accuracy of their statements? Echoing OP's comment, the Costco box didn't mention anything about PFAs. Until I get more evidence to say otherwise I will be avoiding all oral-b flosses going forward.

Archana13745
May 16, 2023

Can we trust the Oral-B representative or should we wait for independent testing?

Kevin13742
May 24, 2023

Just bought Oral-B Glide Advanced Multi-Protection Floss from Costco and there is no way I believe it is PFAS free. It is very much like Teflon tape.

eyal13741
June 06, 2023

And any thought why wouldn’t Oral-B write on the package that the product is free of? They are worried they’ll sell too many?
I switched from oral-b to Hello (Target) . Not the best but cheap and natural…
Oral-B lost my business long ago. I really was hoping to switch back (Costco- on sell- pretty good price) but I guess not.

Ernest13738
May 01, 2023

Lets say my dental floss contains PFAS's, how do the PFAS's leach/rub off the floss into my mouth? How much of the PFAS's leach/rub off into my mouth? Do you know for a fact that any PFAF's actually leach/rub off at all?

ConsumerLab.com
May 18, 2023

As noted in the following section of our article, the use of PFAS-containing floss has been linked with elevated blood levels of PFAS: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#blood-levels-of-pfas

JoeMiz
April 30, 2023

A recent report in the journal Obesity "Weight loss relapse associated with exposure to perfluoroalkylate substances" on 17 April 2023 suggests that PFAS contributes to weight gain

Robert13735
April 30, 2023

Confused? I use a product called Plackers. On their website, they make this statement. See below. What does that mean for this product? Safe to use?

Do Plackers Gentleslide or Extra Comfort flossers contain PFOA/PFOS in the PTFE floss fiber?
No PFOA/PFOS was detected in third-party testing performed on Plackers PTFE floss fibers. All Plackers flossers are subject to rigorous safety and quality assurance testing and comply with strict industry and government regulations. We stand behind the safety of our products.

ConsumerLab.com
May 11, 2023

We can see how that statement from Plackers might lead one to think that its "Gentleslide"" Flossers product doesn't contain PFAS, but they actually do, because they are made with PTFE -- another type of PFAS. It's just that they don't contain two other types of PFAS known as PFOA and PFOS, which are well studied, linked with health concerns, and have been voluntarily phased out by industry (https://19january2021snapshot.epa.gov/pfas/basic-information-pfas_.html). Fortunately, there are other flossers, including one from Plackers, that are unlikely to contain any PFAS, as listed here in our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#flosses-flossers-without-pfas

Gary13733
April 30, 2023

What is the difference between the floss "REACH MINT WAXED" and the "REACH MINT WAXED FLOSS" ?? One has PTFE, the other may not. Very confused as to which one to buy.

ConsumerLab.com
May 09, 2023

As noted in the following section of our article, none of the Reach flosses that were tested contained a marker that may indicate the presence of PFAS: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#flosses-flossers-without-pfas

James13731
April 30, 2023

Use the Oral-B Glide multi-protection floss - clean mint from Costco, no listing here for PFAS so we’re assuming it’s ok?

ConsumerLab.com
May 09, 2023

We've added information about this floss to the following section of our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#oralb-multiprotection

Mason13728
April 30, 2023

Would it be possible to clarify whether the fluorine levels found in dr. Tung's floss were comparable to the PTFE-based flosses tested? They claim their floss is 100% nylon.

ConsumerLab.com
May 09, 2023

Information about the amount of fluorine (a marker for PFAS) that was detected in drTung's Smart Floss, and how it compares to the amounts detected in other flosses, can be found in the following section of our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#flosses-flossers-with-fluorine

Elizabeth13726
April 29, 2023

What is the best way to dispose of a product that contains PFAS?

ConsumerLab.com
May 09, 2023

There do not appear to be any recommended methods for disposing of PFAS-containing consumer products.

Chris13723
April 29, 2023

I have mostly given up dental floss and gone to water flossing.

Suzanne S
May 02, 2023

Hello Chris I hear you but having a dental office in west Los Angeles we believe flossing is essential for the best oral hygiene. We love water flossers too but they don’t do the same job. Also we suggest that if your water Flosser has various speeds use the lowest speed as flossing overtime with a high speed setting can contribute to gum recession.

C. Swanson
May 08, 2023

That’s interesting to hear. My dental office says the opposite: that water flossing does a better job of cleaning under the gums than regular floss does. They say the same thing about using a low setting, though.

Gene13721
April 28, 2023

Thanks for these PFAS lists. Two of interest to me that I don’t see are CVS Dental Tape, which I’ve used for a long time because of the tape style, and Oral-B Waxed.

ConsumerLab.com
August 30, 2023

According to a customer relations representative for CVS, CVS Dental Tape is made of PTFE. There are a number of Oral B floss products that are waxed, and as noted in our article, some of these products do contain PTFE: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#response

James B13716
April 11, 2023

I have a thing of Signature Care waxed dental floss which says compare to Reach. Though Reach apparently did not test positive, what does that mean for the Signature Care?

ConsumerLab.com
April 28, 2023

Information about Signature Care Waxed Dental Floss can be found in the following section of our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#signature-care

Lea13714
April 11, 2023

I use GUM expanding floss and I wonder if you have tested it.

ConsumerLab.com
April 28, 2023

We've added information about GUM Expanding Dental Floss to the following section of our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#gum-expanding

Janel13704
March 13, 2023

It seems that most no-PFAS dental floss does not work with tightly-spaced teeth, or at least that's my impression from the comments. I have been using Glide because it does slip between tight teeth, but want to shift to a safer floss (that also does not shred!). Suggestions?

ConsumerLab.com
March 14, 2023

If you have tight spaces between teeth, other floss options to consider are waxed floss and silk floss (which can also be waxed).

Marthe13708
April 09, 2023

I have the opposite - lots of space. And I use TopCare everyday Unflavored Unwaxed Dental Floss (a lot of it). Is it safe to assume that it's just nylon ? I like the face that it's a little abrasive (need it to remove plaque between teeth).

Deborah13706
April 10, 2023

I have some tightly spaced teeth, but use Radius silk floss and I like it very much. At first, it's more difficult to use, but I double the floss (i.e. two strands at once) and I've gotten more proficient with practice.

M13707
April 11, 2023

I use the Radius waxed nylon floss (vegan), and I have very tight junctions that shred floss. Go slowly, and it's less likely to shred. Added bonus: it comes in a recyclable paper box instead of a plastic carton.

Diana13705
May 02, 2023

POH floss--available on line--has non-PFAS floss in several thicknesses. I use the very fine unwaxed.

LYNN13713
September 06, 2023

Thanks for mentioning silk floss from Radius. I didn't know about it. Nylon is made from petrochemicals and many flosses have Teflon, which has been found to be harmful, too. Seems Radius silk is the only biodegradable option.

ConsumerLab.com
September 08, 2023

If you are interested in biodegradable flosses, we list other floss brands made of silk or bamboo that have also been found to be "unlikely" to contain PTFE or PFAS (based on independent testing) in the following sections of our article:

https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#flosses-flossers-without-pfas

https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#low-fluorine

larry13702
February 06, 2023

A friend sent me an article indicating that common canned sparkling water such as lacroix or bubbly are contaminated with pfas to significant levels. Have you investigated this?

ConsumerLab.com
February 10, 2023

We include information about PFAS contamination in bottled water (including sparkling water) in the following section of our article above: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#pfas-in-bottled-water. We are not aware of evidence confirming PFAS contamination of canned sparkling water but would be interested in reviewing the data if you could provide us with your source.

janet13694
October 27, 2021

I buy my dental floss and toothbrushes form POH's, based in Tulsa. I think they are great. If anyone has any other info on POH, let me know. At this point, i recommend their products.

Janet13696
November 29, 2023

Yes, I agree about POH - surprised it wasn’t reviewed!

ConsumerLab.com
November 29, 2023

Although POH brand floss was not tested in the studies we reviewed, we have included some information about a specific POH product in the following section of our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#poh

Deborah13689
September 05, 2021

You state that reverse osmosis filters are most effective at removing PFAS in water but that minerals are also removed with this filtration process. For health reasons should the water be remineralized, and if so, how would you recommend doing this?

ConsumerLab.com
September 05, 2021

As we explain in our product review of water pitcher filters ( https://www.consumerlab.com/reviews/water-filters-review/water-filters/), certain filters (including reverse osmosis filters) can certainly remove essential minerals from water, but the amounts in water are relatively small -- you can get much more from the foods you eat. However, filtration also removes fluoride, which is needed, in small amounts, for strong teeth and bones -- especially by children, so be sure you have another source of fluoride, such as toothpaste containing fluoride.

Joe S.
December 31, 2020

Protocol with dental implants is to place a small amount of plumbers Teflon tape over a retaining screw before cementing a crown or placing a composite resin filling. This poses the question: Does this tape, sitting passively, leach PFAS?

N13682
December 30, 2020

I have periodontal disease. I have used COQ10 with success in reducing progression. Actually, has improved.

Richard13683
July 15, 2023

I take 3 - 50mg ubiquinol gelcaps per day...breaking them with my teeth and swishing the liquid around before swallowing.

John13672
December 30, 2020

I stopped using Oral-B a long time ago because of this issue & the fact that it is so thin as to be almost unusable. Switched to Dr Tung's & super happy.

Deborah13679
May 23, 2021

Dr Tungs is great

Mike13681
June 25, 2021

Where do you buy Dr Tungs?

Carol13674
June 25, 2021

Dr. Tung's is THE BEST!

Ellen13673
July 02, 2021

I get Dr Tungs on Amazon.

Janet13680
September 01, 2021

Yes, Dr. Tung’s Smart Floss is superior to Glide floss! I have almost no tartar issues since switching to Dr. Tung’s. My dental hygienist even noticed the difference.

Arthur13677
May 01, 2023

Dr Tung's is the best! Switched from Glide a few yrs ago.

JARKKO13665
September 12, 2020

I use GUM Soft-Picks® Original. Super-soft rubber bristles. Latex, wood, and metal free. I don't know do they contain PFAS. https://www.sunstargum.com/products/category-interdentals/gum-soft-picks-original.html

ConsumerLab.com
September 26, 2020

According to Sunstar Americas (the maker of GUM products), the Soft Picks do not contain any PTFE (polytetrafluoroethylene), which is a PFAS. The only flosser or floss made by Sunstar Americas that do contain PTFE are the Comfort Slide Flossers & Eez-Thru floss (mint & plain).

David13667
December 12, 2023

Those are the best. Only ones I know of that have slack floss, so it can wrap around the tooth. How do we write to them to complain about the PTFE? Thanks! I have no financial interest in any entity related to this.

Carole13664
August 19, 2020

I use Gum Chucks Flosser with the handles . They work well for me with arthritic fingers. Please comment or review. Thank you!

Joseph13662
August 16, 2020

PFAS in Dentek Triple Clean Floss Picks?

ConsumerLab.com
August 18, 2020

We reached out to Dentek about this question, and we were told by one of their medical affairs representatives that the Triple Clean Floss Picks are made with polyethylene floss, which would not be expected to contain PFAS. The representative also stated that they "are not aware of Polyfluoralkyl substances (PFAS) being present in any of [their] flossers."

Parkinson's Patient
August 16, 2020

I am stuck with Glide because of tight contacts. One thing that can be changed however, is to floss before brushing rather than after. Then rinse thoroughly!

Frances13661
May 23, 2021

I always thought that flossing before brushing was the only way for the brushing to be really effective.

esther13657
July 26, 2020

Is there any reason to think UHMWPE would be problematic?

Plackers says:

The Right Angle flosser is made with UHMWPE (Ultra-High-Molecular-Weight-Polyethylene). The only flosser made with PTFE (Teflon as many like to call it) is the Gentle Slide.

ConsumerLab.com
August 12, 2020

Ultra-high molecular weight polyethylene is non-toxic, so using flossers or flosser picks made with this material would not be a safety concern. The material might not be considered acceptable to those who are environmentally conscious, as it degrades slowly and is not compostable like silk.

Sandra13655
July 20, 2020

If PFAS is an integral component of the dental floss fiber and cannot be washed off, how does enough of it even get into our body, to cause a problem?

ConsumerLab.com
August 12, 2020

While PFAS are an integral component of the dental floss fiber and cannot be washed off, there is concern that, with use, small amounts may leach into saliva or onto hands. However, the authors of the study note that this still needs to be verified in future research.

Alex13651
July 20, 2020

How effective is brushing teeth with toothpaste right after flossing in reducing PFAS in the mouth?

ConsumerLab.com
July 20, 2020

Unfortunately, we don't know, but it's fair to assume that at least some of the women in whom PFAS were found had been brushing and/or rinsing after flossing.

Sandra13648
July 19, 2020

Can PFAS be washed off of dental floss? I have a large supply of the Crest/Oral B type, I have tight teeth and need this slippery type. You may think I’m weird, but I already kind of do this; I rinse off and re-use a strand 4 or 5 times before discarding, mainly because I don’t like the added flavoring and this gets rid of it. ;-)

ConsumerLab.com
July 20, 2020

It would seem unlikely that washing the floss will remove the PFAS as they are an integral component of the fiber of which the floss is composed.

Sarah13649
November 07, 2021

Thank you. I’ve been washing mine too. Time to change!

esther13646
July 15, 2020

Plackers says,

No PFAS/PFOS was detected in third party testing performed on the Plackers PTFE floss fiber

Maybe someone should clue them in...

Alex13644
July 15, 2020

Is Crest Glide floss manufactured exactly the same, from a PFAS standpoint, as Oral-B Glide floss, and with the same health impacts?

ConsumerLab.com
July 15, 2020

We don't have information about the manufacturing process for Crest and Oral-B floss, but the study states "Crest Glide was subsequently rebranded as Oral B Glide by its parent company Procter & Gamble." We've added a note about this in the answer above.

Jeffrey13642
July 13, 2020

My teeth are very closely spaced, and I find that Glide is the only floss to not get stuck. My solution is to floss only part way down and not reach the gum. Then I use the GUM brushes to do the area close to the gum. I'd welcome any professional's comments on the efficacy of this approach. Thank you.

Sarah13640
July 13, 2020

POH dental floss is excellent, pure nylon, and free of fluorine and PFAs. I've used POH for the last 20 years, but have not financial interest in Personal Oral Hygiene.

ConsumerLab.com
July 13, 2020

POH does not make a claim on their website that their flosses are PFAS-free. However, ConsumerLab was told by a company representative that POH flosses are made from nylon. They also stated: "In the production/manufacture of nylon, there is no reason to suspect that any polyfluoroalkyl substances are present....To the best of our almost sixty years knowledge, there are no poly-fluorinated substances in POH dental floss."

Kara13636
July 13, 2020

Do you have a recommendation for floss picks that do not have PFAs or a safer option for floss picks? Thanks

ConsumerLab.com
August 13, 2020

We've added a list of PFAS-free dental picks in the answer above.

Kara13638
August 13, 2020

This is truly the best website with the best information. Thanks for doing what you do and for caring so much about the health of others. Blessings!

ConsumerLab.com
August 17, 2020

Thank you for your kind words. We're glad you are enjoying the site!

Bill13633
July 12, 2020

I use dental tape (Walgreen's). Did you by chance evaluate this product?

ConsumerLab.com
July 13, 2020

Walgreen's Dental tape was not tested in the study, and, unfortunately, the product website does not list the product's ingredients.

Glenn13631
July 12, 2020

I am curious about Gum brand products, both their floss and Proxabrush products, which apparently were not included in the study. For the Proxabush, I use the handle with replaceable "Go-Betweens" refills, but I think even they are made from some plastic material.

ConsumerLab.com
July 14, 2020

According to GUM's website, its Eez-Thru flosses are made from PTFE (which is a PFAS) while its Expanding floss is made from nylon (https://www.gumbrand.com/between-teeth-cleaning/string-floss.html). GUM Proxabrush Go-Between Cleaners are described as having "nylon bristles coated with an antibacterial agent," (https://www.gumbrand.com/new-proxabrush/gum-proxabrush-go-between-cleaners-wide-10-ct.html).

Thomas13630
July 12, 2020

What about woven floss? For example, Listerine Gentle Gum Care Mint floss. I find woven floss much easier to handle, both in my hands and in my teeth.

James13629
July 12, 2020

After the Oral-B Glide study came out, I tried a few natural options that, frankly, were awful to use. But "Hello" brand activated charcoal floss has been a great alternative for the tight spaces between my teeth and specifically claims "PFAS-free" on the product page. The activated charcoal part is probably a gimmick but that's fine with me.

Bari13622
July 12, 2020

Please look at Kroger Waxed Dental Floss also.

Bari13624
May 01, 2023

Yes, I use this also (unflavored).

G13623
June 07, 2023

That makes three of us - hoping they can assess Kroger waxed floss (unflavored).

ConsumerLab.com
June 22, 2023

We reached out to Kroger for details about its floss. It forwarded our inquiry to its supplier, and we are awaiting information.

G13626
December 28, 2023

Any updates on PFAS in Kroger brand floss? Thanks.

ConsumerLab.com
January 02, 2024

We've added information about Kroger Waxed Dental Floss to the following section of our article: https://www.consumerlab.com/answers/toxic-pfas-chemicals-in-dental-floss/pfas-dental-floss/#kroger

Janiene13620
July 11, 2020

Walgreens is one of the largest pharmacy but I did not see anything on their Hi-Tech Dental Floss. I also can not find anything online about it. Is there any information on this product?

ConsumerLab.com
July 14, 2020

The website for this product state "Floss material is made of strong microfilaments that fan out to create a broader cleaning surface," and "Slips easily between tight teeth... Will not break, shred or entangle during use," but does not provide further information about the materials used in this floss.

Michael13612
July 09, 2020

This is a bogus study performed by researchers who do not understand the "real" world, where the vast majority of patients have much improved dental health due to Glide. I have practiced dentistry for 45 years and I am a Clinical Associate Professor at the UTHealth School of Dentistry. I have researched this issue extensively and found it to be below the level of having practical relevance.

Howard13615
July 12, 2020

I respect your experience and your researching of this issue. There are many other sources of PFAS and related molecules in the environment, and I am willing to believe that dental flosses may represent only a small amount of a person's PFAS intake. Nevertheless, the EPA website says:
There is evidence that exposure to PFAS can lead to adverse health outcomes in humans. If humans, or animals, ingest PFAS (by eating or drinking food or water than contain PFAS), the PFAS are absorbed, and can accumulate in the body. PFAS stay in the human body for long periods of time. As a result, as people get exposed to PFAS from different sources over time, the level of PFAS in their bodies may increase to the point where they suffer from adverse health effects.

Studies indicate that PFOA and PFOS can cause reproductive and developmental, liver and kidney, and immunological effects in laboratory animals. Both chemicals have caused tumors in animal studies. The most consistent findings from human epidemiology studies are increased cholesterol levels among exposed populations, with more limited findings related to:

infant birth weights,
effects on the immune system,
cancer (for PFOA), and
thyroid hormone disruption (for PFOS).

Dean13618
July 12, 2020

Why "bogus", which implies ulterior intent? Disagreeing with the findings does not make a study bogus. The authors are careful to state their limitations.

David13617
July 12, 2020

I don't think PFAS residues in the body are trivial. If using Oral-B Glide floss was associated with a 24.9% higher level of a particular PFAS, as the article states, I would not want to use this floss at all. The article indicates there are many good alternatives. Thanks to ConsumerLab for this useful information.

Andreas13613
July 13, 2020

Please provide references to the extensive research mentioned in your post.

Thank you.

Diana13616
July 13, 2020

Many persons prefer not to use anything made with PFAs, for environmental reasons. (For instance, we avoid 'stain-resistant' cotton clothing for this reason: the fiber is treated with Teflon). Further, while floss may have negligible PFAs, there is a concern with the cumulative 'body burden' of environmental toxins over a lifetime.

Robert13611
July 08, 2020

I try to use floss three days per week, but use a ShowerBreeze dental water jet irrigator seven days per week--all done while showering. Both these practices can keep the area under my bridge clean. I don't think a rubber tip or toothpick would work for that.

Lisa13610
July 07, 2020

Curious about Listerine floss that is used with the floss stick.

Sharon13608
July 06, 2020

Do you have any information about POH floss? I have used this exclusively for many years.

ConsumerLab.com
July 06, 2020

The website for this product does not make any claim that it is PFAS-free. We have reached out to the company and will update this comment if we receive a response.

Glenn13605
July 06, 2020

Would it be safer to just use unwaxed floss, or is that not enough?

ConsumerLab.com
July 06, 2020

It's not clear from the available research if unwaxed floss is less likely to contain PFAS. However, keep in mind that unwaxed floss can also be made from materials such as Teflon.

griz
July 05, 2020

Dr. Mercola's dental floss also has essential oils in it. It also comes in 100 instead of 55 yard lengths

ConsumerLab.com
July 06, 2020

The website for this product notes that the floss is made of nylon, and is vegan-waxed, although it does not state that it is PFAS-free.

Lloyd13597
July 05, 2020

I practiced Periodontics for more than 25 years. I never recommended or required a patient to use dental floss, Instead I taught the use of a Butler Interdental Stimulator (Rubber Tip) and plastic triangular cross-section tooth picks.Neither of these goes below the gum. This idea used to drive some dental hygienists practically crazy, a dental "sacrilege". I considered flossing to be difficult, and crude, but apparently it may also be toxic, DENTAL FLOSS?, you can get along without it, and very well, perhaps better.

Michael13598
July 12, 2020

Flossing is definitely not a very pleasant task, but rubber tips and/or any type of toothpick cannot replace it since these items cannot reach all areas of the mouth. Glide floss at least makes flossing tolerable for most patients. As I noted in another comment, I've been practicing dentistry for 40+ years along with teaching dental students and conducting research in a university setting. The old adage of only flossing the teeth you want to keep is still valid.

Diana13592
July 05, 2020

POH is excellent floss and comes in extra-fine so you don't need Teflon to get it between your teeth.

Cari13595
July 29, 2020

Where do you buy POH floss? Seems like I haven't seen this product on the shelves for a good 40 yrs.

Ellen13594
September 06, 2023

I buy POH floss online, either direct from POH or from:
https://www.pasteurshaving.com/search?q=floss

Plenty of others that sell it online. Best to shop around various websites as prices vary and change all the time.

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