Best Dental Floss of 2026: Research-Backed Picks for Every Mouth

If you’re searching for the best dental floss right now, chances are you’ve heard about the PFAS controversy around PTFE-based flosses like Oral-B Glide. You’re not alone — it’s the single biggest topic driving floss conversations on Reddit’s dental communities. We’ll address it head-on below.

But here’s the thing dental professionals keep saying in those same forums: the type of floss matters more than most people think. Thicker, textured, or expanding flosses remove significantly more plaque than thin, smooth ones. The ADA recommends cleaning between your teeth daily, and Mayo Clinic’s cavity prevention guidance emphasizes flossing as one of the most effective ways to prevent interproximal decay. That said, the best floss is the one you’ll actually use — consistency matters more than brand.

How we researched this page: We reviewed ADA and Mayo Clinic guidance on interdental cleaning, cross-referenced Reddit discussions across r/dentistry, r/askdentists, r/DentalHygiene, and r/nontoxic (where PFAS concerns are heavily discussed), and analyzed community consensus data from our 874-thread dental research corpus. We did not test these products hands-on. Our recommendations are based on ingredient evidence, professional commentary, and real user experience patterns — not personal use.

Oral-B Glide Pro-Health Comfort Plus Floss

⭐ Best OverallUnder $25

Oral-B Glide Pro-Health Comfort Plus Floss

Best for: Most adults who want smooth, shred-resistant floss that slides easily between tight teeth

4.7

• PTFE-based ultra-smooth texture that resists shredding
• Slides easily between tight contacts and dental work
• Light wax coating for comfortable glide
• Available in multiple lengths and flavor options

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Why We Recommend It

Oral-B Glide remains the most widely used dental floss in the US — and a long-running Wirecutter pick — and for many adults it’s the right default choice. It slides between even the tightest contacts without shredding. Oral-B has been reformulating Glide to move away from PTFE (the material linked to PFAS concerns), and the newer versions use a different polymer. Long-time users report the texture feels rougher and more plastic-like than the original, though a hygienist on r/DentalHygiene notes the new version “actually cleans better” because it grips the tooth surface more.

Key Features

• PTFE-based ultra-smooth texture that resists shredding
• Slides easily between tight contacts and dental work
• Light wax coating for comfortable glide
• Available in multiple lengths and flavor options
• Thin profile fits comfortably in narrow spaces

Who It’s Best For

Oral-B Glide is an excellent everyday floss for most adults, and it’s especially well-suited for people with tight contacts who struggle with thicker flosses that shred or get stuck. It’s also a good choice for anyone with crowns, veneers, or other dental work where a smooth, non-catching floss reduces the risk of dislodging restorations. If you’re also considering upgrading your interdental routine, our best water flosser picks pair well with string floss for a more thorough clean.

Potential Downsides

Glide’s PTFE/PFAS history is the elephant in the room. The original formula used PTFE (a Teflon-type polymer), and a 2019 study in the Journal of Exposure Science & Environmental Epidemiology found higher PFAS blood levels in women who used Oral-B Glide. Oral-B has been reformulating, but ingredient transparency has been limited — consumers can’t easily verify what polymer the current version uses. If you want to avoid PTFE entirely, see Tom’s of Maine below. Beyond the materials question, dental professionals on Reddit consistently note that smooth, thin floss like Glide is less effective at plaque removal than thicker, textured alternatives — “We do NOT like glide,” writes one dental professional on r/nontoxic. “Thicker/fluffier floss is more effective than thin slippy floss.”

Cocofloss Coconut-Oil Infused Dental Floss

Best Textured$25–$75

Cocofloss Coconut-Oil Infused Dental Floss

Best for: People who want maximum plaque removal and a premium flossing experience

4.4

• 500+ interwoven microfilaments that expand to scrub tooth surfaces
• Infused with coconut oil and natural fruit waxes
• Textured design grips and removes more plaque than smooth floss
• Available in several pleasant flavor options

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Why We Recommend It

Cocofloss has the strongest combined professional and community endorsement of any floss we researched. Multiple dental hygienists on r/DentalHygiene recommend it by name, and an RDH’s patient recommendation sheet posted on that subreddit includes it. The floss is made from hundreds of interwoven microfilaments that fan out when pressed against the tooth surface, physically scrubbing away plaque rather than just sliding past it. One user on r/PeriodontalDisease credited Cocofloss as part of the routine that took their periodontal pockets from 6-7mm to 3-4mm. If you look at the floss after use, you’ll likely see visible debris — a satisfying (if slightly unsettling) sign that it’s working.

Key Features

• 500+ interwoven microfilaments that expand to scrub tooth surfaces
• Infused with coconut oil and natural fruit waxes
• Textured design grips and removes more plaque than smooth floss
• Available in several pleasant flavors including coconut, strawberry, and mint
• Vegan and cruelty-free

Who It’s Best For

Cocofloss is ideal for anyone who wants the most thorough clean possible from string floss and doesn’t mind paying a premium for it. It’s particularly effective for people who tend to build up plaque quickly or who have been told by their hygienist that they need to improve their flossing game. It’s also a solid choice for anyone who wants a more “natural” feeling floss experience with coconut oil and plant-based ingredients.

Potential Downsides

The biggest barrier is price — a dedicated r/DentalHygiene thread asks “Is there a floss similar to cocofloss that doesn’t cost an arm and a leg?” Its thicker, textured profile may not fit comfortably between very tight contacts, and a hygienist notes it doesn’t work well for patients with lots of restorations. One concern surfaced by r/moderatelygranolamoms: Cocofloss contains polyester (a microplastic), which matters to environmentally conscious buyers. If you have extremely crowded teeth, a thinner floss like Oral-B Glide may be a more practical daily choice.

Dr. Tung’s Smart Floss

Best ExpandingUnder $25

Dr. Tung's Smart Floss

Best for: People with wider gaps or dental work who need floss that adapts to different spaces

4.5

• Expands and stretches to clean more surface area than standard floss
• Adapts to varying gap sizes throughout the mouth
• Infused with natural cardamom and lemon essential oils
• Soft, comfortable texture that's gentle on gums

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Why We Recommend It

Dr. Tung’s Smart Floss solves a common frustration: the fact that gaps between your teeth aren’t all the same size. Its expanding design starts thin enough to slip between tight contacts and then stretches wider in larger gaps, adapting as it goes. The manufacturer cites a study showing Smart Floss removes up to 55% more plaque than regular floss — we haven’t independently verified this figure, but the expanding mechanism is genuine and dental hygienists on r/DentalHygiene and r/nontoxic recommend it by name. A dental professional on r/nontoxic lists it alongside Cocofloss as their primary floss recommendation.

Key Features

• Expands and stretches to clean more surface area than standard floss
• Adapts to varying gap sizes throughout the mouth
• Infused with natural cardamom and lemon essential oils
• Soft, comfortable texture that’s gentle on gums
• Free from artificial flavors and colors

Who It’s Best For

Smart Floss is a standout choice for anyone with dental work — bridges, implants, wide gaps from extractions, or orthodontic retainers — where spacing varies significantly throughout the mouth. It’s also great for people who find standard floss too thin to feel like it’s doing anything in their wider gaps. If you’re dealing with plaque buildup around dental work, our guide on how to remove plaque from teeth offers additional strategies beyond flossing.

Potential Downsides

The expanding design means it’s not the thinnest floss available — if all your contacts are very tight, you may find it harder to get started between teeth compared to a slim PTFE floss. Some users also note that the cardamom flavor is distinctive and not to everyone’s taste. The spool packaging is functional but less elegant than some competitors.

Listerine Gentle Gum Care Floss

Why We Recommend It

For anyone who has ever avoided flossing because it hurts or causes bleeding, Listerine Gentle Gum Care is designed specifically to solve that problem. Its cushioned, softer-than-average texture is noticeably gentler on gum tissue than standard nylon floss, making it easier to build and maintain a consistent flossing habit. According to the American Dental Association, bleeding gums during flossing can sometimes indicate gingivitis, but can also result from flossing too aggressively or with a product that’s too harsh for your tissue. A gentler floss can help you stay consistent while your gum health improves.

Key Features

• Soft, cushiony texture designed specifically for tender gums
• Slides gently without cutting or snapping against gum tissue
• Light mint flavor for freshness without irritation
• Effective plaque removal despite gentle construction
• Widely available at most drugstores and supermarkets

Who It’s Best For

This floss is purpose-built for people with sensitive, inflamed, or bleeding gums — whether that’s due to early-stage gum disease, recent dental procedures, or simply having delicate tissue. It’s also a good transitional floss for people who are getting back into a flossing routine after a long hiatus and want to ease in gently. For those managing gum sensitivity across their entire routine, pairing this with a sensitivity-focused mouthwash can provide additional comfort.

Potential Downsides

The softer construction means it may not be as durable as tougher flosses — it can shred more easily between very tight contacts. It also may not provide the same aggressive plaque-scrubbing action as textured options like Cocofloss. Users with healthy gums who want maximum cleaning power may find it too gentle for their needs.

Tom’s of Maine Naturally Waxed Anti-Plaque Floss

Why We Recommend It

With growing consumer awareness around PFAS (so-called “forever chemicals”) in everyday products, Tom’s of Maine offers a straightforward alternative for people who want to avoid PTFE-based floss entirely. It uses a traditional nylon construction with a natural beeswax coating — no Teflon, no synthetic coatings, no artificial anything. It’s a solid, effective floss that cleans well and gives health-conscious consumers genuine peace of mind about what they’re putting in their mouths every day.

Key Features

• Naturally waxed with no PTFE, PFAS, or artificial ingredients
• Nylon construction with natural beeswax coating
• Spearmint flavor from natural essential oils
• No artificial preservatives, colors, or flavors
• Recyclable packaging through Tom’s of Maine terracycle program

Who It’s Best For

Tom’s of Maine is the clear pick for consumers who prioritize clean, transparent ingredients and want to avoid synthetic chemicals wherever possible. It’s also a good choice for people with PTFE sensitivities or anyone who simply prefers a more traditional, natural-feeling floss. If you’re building a natural oral care routine, this pairs well with natural toothpaste and fluoride-free options.

Potential Downsides

The natural beeswax coating provides decent glide, but it’s noticeably less smooth than PTFE-based flosses like Oral-B Glide. Users with very tight contacts may experience more shredding or resistance. It’s also not vegan due to the beeswax. If your top priority is effortless glide over ingredient purity, a PTFE floss will feel smoother.

Reach Dentotape Waxed Dental Floss

Why We Recommend It

Reach Dentotape has been a drugstore staple for decades, and it continues to earn a loyal following for a simple reason: it works well and costs very little. The flat, ribbon-style tape design covers more surface area per pass than round floss, which can make cleaning feel more thorough — particularly for people with wider interdental spaces. It’s the kind of no-nonsense product that dental hygienists quietly recommend when patients ask for something affordable and effective.

Key Features

• Extra-wide waxed tape design for broader surface coverage
• Flat ribbon shape covers more tooth surface per pass
• Waxed for smooth glide between teeth
• Generous spool length at a budget-friendly price
• Unflavored and mint options available

Who It’s Best For

Dentotape is excellent for budget-conscious shoppers who don’t want to compromise on cleaning quality. The flat tape design is particularly well-suited for people with wider gaps, bridges, or areas where round floss feels inadequate. It’s also a good option for families who go through floss quickly and want value without sacrificing effectiveness. For a head-to-head comparison of flossing methods, check our guide on water flosser vs. floss.

Potential Downsides

The wider tape profile can be a challenge in very tight contacts — it may bunch up or feel difficult to thread between closely spaced teeth. It lacks the premium feel and features of pricier options, and the packaging is purely functional. If you have tight teeth and limited dexterity, a thinner floss or a floss pick may be easier to work with.

Buyer’s Guide: What to Look For

Waxed vs. Unwaxed

Waxed floss has a light coating that helps it slide between tight contacts more easily, while unwaxed floss may grip tooth surfaces slightly better. The ADA states that both are effective when used properly. Most people find waxed floss easier and more comfortable to use, which is why the majority of our picks feature some form of wax coating.

PTFE (Glide-Type) vs. Nylon

PTFE-based flosses (like Oral-B Glide) offer the smoothest possible glide and virtually never shred, which can improve daily compliance for people with tight contacts. Nylon flosses are more traditional, widely available, and avoid PTFE-related chemical concerns. If ease of use is your priority, PTFE wins. If ingredient transparency matters more, nylon with natural wax is the way to go.

Expanding vs. Standard

Expanding flosses like Dr. Tung’s Smart Floss start thin and widen as they’re pressed against tooth surfaces, adapting to different gap sizes. Standard flosses maintain a consistent thickness. Expanding floss is particularly useful if your teeth have varying spacing or if you have dental work that creates non-uniform gaps.

Textured vs. Smooth

Textured flosses (like Cocofloss) have a rougher surface that may grab more plaque per pass but require more effort to thread. Smooth flosses glide effortlessly but may leave behind more residue. Consider how tight your contacts are — texture is great for accessible gaps but can be impractical in very tight spaces.

Flavor and Comfort

Floss comes in mint, cinnamon, coconut, unflavored, and more. Flavor doesn’t affect cleaning performance, but it can affect whether you enjoy the experience enough to do it every day. The best floss is the one you’ll actually use — so pick a flavor and texture that doesn’t feel like a chore.

How Much Should You Spend?

Most quality dental floss costs between $3 and $8 per spool. Premium options like Cocofloss run higher but offer a different cleaning experience. There’s no evidence that expensive floss is categorically more effective than affordable floss — technique and consistency matter far more than price point.

Community vs. Evidence: What Dental Professionals Actually Recommend

The professional consensus is clear: if you can tolerate a thicker floss, use one. But a thin floss used daily beats a thick floss sitting in the drawer.

When Flossing Doesn’t Seem to Help

Flossing every day but still getting cavities between teeth or worsening gum pockets? The issue is often one of these patterns:

• Technique matters more than product. If you’re snapping floss straight down and back up, you’re missing the contact surface. Curve the floss into a C-shape against each tooth and slide it below the gumline — the ADA’s flossing technique guide covers the full method. Many people floss for years with poor technique and blame the floss.
• Floss alone doesn’t reach everything. If you have wider gaps, dental work, or periodontal pockets, string floss may not be enough. Interdental brushes clean wider spaces more effectively, and water flossers flush debris from below the gumline where string floss can’t reach. Dental communities on Reddit consistently recommend combining tools — not choosing one.
• Gum disease needs more than flossing. If your gums bleed persistently despite consistent flossing, that’s a signal to see your dentist — not to floss harder. Periodontal disease requires professional treatment (scaling, root planing) that home care alone can’t replace. See our gum disease toothpaste guide for the full home-care picture.
• You’re flossing at the wrong time. Flossing before brushing lets fluoride from your toothpaste reach between freshly cleaned teeth. Multiple dental professionals recommend this sequence, though the ADA says the order matters less than doing it at all.

FAQ

Q: How often should I floss? A: The ADA recommends cleaning between your teeth once a day with an interdental cleaner. Whether you floss in the morning or at night matters less than doing it consistently. Many dentists suggest flossing before brushing so that fluoride from toothpaste can reach between freshly cleaned teeth.

Q: Is PTFE floss safe to use? A: PTFE-based flosses like Oral-B Glide have faced questions about potential PFAS exposure. While research into the health effects of PFAS from dental floss is ongoing, the amounts involved are considered very small. If you’re concerned, switching to a nylon-based or naturally waxed floss (like Tom’s of Maine) eliminates PTFE exposure entirely. Consult your dentist or doctor if you have specific health concerns.

Q: Should I use dental floss or a water flosser? A: Both are effective interdental cleaning methods, and the ADA recognizes both as valid options. String floss excels at scraping plaque off tooth surfaces through direct contact, while water flossers use pressurized water to flush debris from gaps and along the gumline. Many dental professionals suggest using both for the most thorough clean. For a detailed comparison, see our water flosser vs. floss guide.

Q: My gums bleed when I floss. Should I stop? A: Mild bleeding when you first start (or restart) a flossing habit is common and usually subsides within a week or two of consistent daily flossing. However, persistent bleeding may be a sign of gingivitis or gum disease and should be discussed with your dentist. In the meantime, switching to a gentler floss like Listerine Gentle Gum Care can make the experience more comfortable while your gums adapt.

Q: What’s the correct flossing technique? A: The ADA recommends using about 18 inches of floss, winding most of it around your middle fingers and leaving 1-2 inches to work with. Gently guide the floss between teeth using a rubbing motion — never snap it into the gums. Curve the floss into a C-shape against each tooth surface and slide it up and down beneath the gumline. Use a clean section of floss for each tooth.

Q: Are floss picks as effective as regular floss? A: Floss picks can be effective for basic interdental cleaning, though they have limitations. Because the floss is held taut in a straight line, it’s harder to curve it into a C-shape around each tooth the way you can with finger-wound floss. That said, using a floss pick is significantly better than not flossing at all. If dexterity or convenience is an issue, floss picks are a perfectly reasonable choice. See our best floss picks roundup for top recommendations.

How We Chose These Picks

We selected these six flosses to cover the main approaches — smooth PTFE, textured microfilament, expanding, gentle, natural, and tape — so you can choose the type that fits your teeth and preferences. We cross-referenced dental professional recommendations on Reddit (r/DentalHygiene, r/askdentists, r/nontoxic), community discussion patterns, ADA guidance, and manufacturer specifications. We do not accept payment for product placement or rankings. For the full picture on how our dental research works, see our community consensus methodology.