Clinically proven

BPA & Teflon-free

Cruelty-free

95% recycled plastic

24/7 expert support

Floss

Expanding Floss

Name: Expanding Floss
Brand: US-burstoralcare-dev
SKU: BRST-Flss-RT-SHOP
Price: 5.99 USD
Availability: InStock
Rating: 4.9 (1565 reviews)

4.9

Rated 4.9 out of 5 stars

4.9 Stars (1,565 Reviews)

The boss of all floss

$5.99

The Expanding Floss is clinically proven to remove 2x more plaque than regular unwaxed dental floss*.

Yes, we've made flossing twice as effective. This is all thanks to our incredible network of dentists, hygienists, and our Ambassador community of 40,000+ Dental Professionals who demanded better.

With expanding technology, soft black thread, a smart coating, and a delicious aroma, this floss has transformed flossing for the better. We can’t wait for you to love it, too.

Aroma: Mint Eucalyptus
*In laboratory tests; data on file at burstoralcare.com/clinical.

Refill plan: $5.00 per replacement floss every 12 weeks

Aroma: Mint eucalyptus

Refill plan: $5.00 per replacement floss every 12 weeks, cancel anytime

Floss 101

The Expanding Floss is clinically proven to remove 2x more plaque than regular unwaxed dental floss*.

Yes, we've made flossing twice as effective. This is all thanks to our incredible network of dentists, hygienists, and our Ambassador community of 40,000+ Dental Professionals who demanded better.

Benefits

Clinically proven results:

Removes up to 85% of plaque on tooth surfaces between teeth.
Up to 58% plaque reduction for deep cleaning on root surfaces just below the gumline.*
Removes 2x more plaque than regular unwaxed dental floss.

A better flossing experience:

300+ strong fibers are woven together to effectively catch all the debris between your teeth.
Gives you the super satisfying, refreshing feeling of seeing the gunk being pulled out.
A delicious, minty fresh aroma that is like a spa day for your mouth.
Intelligently built so you don't have to work as hard.

Formula

Technology

Our Dental Professionals (and us!) don’t want you putting bad crud in your mouth. That’s why our vegan, cruelty-free floss uses natural, effective ingredients with no parabens, BPA, Teflon, or PFAS.

What makes it so special?

Expanding technology reaches more surface area than typical floss.
Black color provides a super satisfying feeling by showing all the pesky debris you pull from between your teeth.
Adsorptive xylitol coating pulls away stubborn stains while helping fight cavities.

Mindful ingredients: Microcrystalline wax, mint eucalyptus aroma, xylitol.
*In laboratory tests; data on file at burstoralcare.com/clinical.

You get

2x more plaque removal than regular unwaxed dental floss
40-yards of black, expanding floss
A re-usable case made of 95% recycled plastic

What you don’t get:

Parabens (yuck)
Phthalates (double yuck)
Teflon
BPA
Major allergens
Artificial sweeteners, flavors or colors

*In laboratory tests; data on file at burstoralcare.com/clinical.

Refill plan: $5.00 per replacement floss every 12 weeks, cancel anytime

You pay today:

$5.99

Watch it, shop it

See what people think and shop the faves.

Co-created with 1000s of hygienists & dentists

"I love the BURST floss for its color! The black helps my patients see the plaque removal and the expanding technology has more surface area to grab bacteria."

- Kim F., RDH & BURST Ambassador

Less gunk = better breath

Clinically tested and shown to remove up to 85% of plaque on surfaces toothbrushes can’t reach and 2x more plaque than a regular unwaxed dental floss.*

*In laboratory tests. Data on file. Download at burstoralcare.com/clinical.

See the results

Get the instant satisfaction of seeing exactly what’s been lurking between your teeth, motivating you to keep on flossing!

Refillable case for less waste

Reduce and reuse with our lightweight, compact, 95% recycled plastic case and 40-yard replacement bobbins.

The 8 Best Lip and Oral Care Products of 2021, according to Health Editors

“We’ll be the first to admit that we don’t always remember to floss—unless, of course, it’s with this innovative version. The fibers expand when they come in contact with saliva, which means the floss strands glide between your teeth easily and take more gunk out with them. The charcoal coating helps absorb stains and dirt (so much you can actually see it on the floss if you want to gross yourself out). The refillable packaging is just icing on the cake”

“This floss expands when it touches saliva, so it hugs every nook and cranny between your teeth. The charcoal coating helps reduce stains but also means you can see everything that comes out of your mouth (gross but satisfying).”

“This innovative string takes flossing to the next level. It expands upon contact with saliva so that it can remove even more plaque from between your teeth.”

Curious what people think?

Our BURST Ambassador Dental Professionals and customers know their stuff. You should listen to them.

4.9

Rated 4.9 out of 5 stars

4.9 Stars (1,565 Reviews)

“If you didn't like flossing before, you're going to love it now. The feeling of being able to see the nasty that you removed from this black floss isjust so satisfying. Never thought I' II be so excited to floss. Best stocking stuffer to put in every Christmas bag this season. Just reviewing this floss just made me want to eat and floss again.”

Marisa P.

RDH, BURST Ambassador

“Hands down (or fingers up) my favorite floss! I love that it is black and I can see all the little nasties coming out of my teeth and gums. l love that it is helping remove the stains from my teeth due to my coffee addiction. And it tastes AMAZing!”

Nicole K.

RDH, BURST Ambassador

“BURST floss is my favorite to date and I'll tell you why. The black color makes it so easy to SEE your progress!!! The aroma is fantastic with essential oils to help with gum health! lt's fine enough to reach all those hard to get to places also!!!”

Jenee C.

RDH, BURST Ambassador

See all reviews

Got questions?

How is the BURST floss different from other floss?

Unlike traditional options, BURST Floss has been meticulously designed to remove up to 85% of plaque from areas that regular toothbrushes can't reach and 2x more plaque than unwaxed dental floss. So, get ready for a thorough clean! Its uniquely black color not only provides immediate, gunk-ridding satisfaction by highlighting debris removed from between your teeth but also boasts a high-quality textured thread with adsorptive xylitol coating that effectively pulls away stubborn stains and aids in fighting cavities. Additionally, our floss is mindfully made, being cruelty-free and vegan, with a natural Mint Eucalyptus aroma and free from parabens, BPA, or PFAS. To top it off, it is housed in an eco-friendly 95% recycled plastic case, reflecting our commitment to sustainability. Boom!

Our floss stands out in the market due to its unique features and careful creation process. Developed in collaboration with a community of over 40,000 dental professionals, the Expanding Floss is the result of extensive testing and consultation with this enthusiastic team, setting it apart from all other dental floss options on the market. We actively sought the input of these experts, valuing their insights to create a product that truly caters to your oral health needs.

Why does the BURST floss expand and how?

The BURST Floss is made with technology that reacts to the saliva and friction in your mouth, which then causes the filament to expand. The expansion of the filament will reach into the nooks and crannies in your teeth to get rid of your plaque.

Does BURST floss shred?

Nope! It boasts a high-quality textured thread with an adsorptive xylitol coating that effectively pulls away stubborn stains and aids in fighting cavities. Strong and protective, sign me up!

Why is BURST floss black?

The BURST Floss is uniquely black for a purpose – it instills value for flossing by providing immediate satisfaction through its distinctive color. The black hue highlights the debris removed from between your teeth, giving you a visual representation of the effectiveness of your flossing. This not only motivates you to keep flossing but also addresses the common issue where individuals might not floss as often if they can't see tangible results.

Additionally, BURST Expanding Floss is designed to cater to various dental needs. If you've ever been advised to manipulate floss, such as knotting it, doubling it, using tape, or employing super floss, BURST Floss handles all of those scenarios. It’s kinda like a floss-spouting superhero! Better yet, its versatility makes it great for open contacts, light contacts, wide embrasures, implants, and even food traps. In essence, this is the one floss that does it all, making your flossing routine simpler, more effective, and visually rewarding.

Why are you removing charcoal from your brush heads and floss bobbins?

We thought long and hard about this and want to share the reasoning behind this choice with you. While we still believe in the benefits of charcoal for oral hygiene, we also value the feedback and preferences of our dental professionals and customers.

More questions?
Find answers on our FAQs page.

Customers also bought

Curve Sonic Toothbrush - Black

+ Expanding Floss

4.5

Rated 4.5 out of 5 stars

4.5 Stars (433 Reviews)

$7.00 replacement head / $5.00 Expanding Floss Bobbin sent every 12 weeks, cancel anytime.

Curve 101:
We created the Curve with an innovative arched body to reach the entire mouth — even back molars. It's unique cap, long travel life and bristle design make it the ultimate travel brush.
That's because 1000s of our dental professional partners know firsthand we often miss those tricky...

Non-Slip Whitening Strips

+ Expanding Floss

4.8

Rated 4.8 out of 5 stars

4.8 Stars (156 Reviews)

$17.99 whitening strips pack / $5 floss refill every 12 weeks, cancel anytime.

Strips 101 :
The Non-Slip Whitening Strips are clinically proven to give you visibly whiter teeth from the first 15-minute treatment^*
This achievement is the result of incredible dedication from dentists and hygienists in our Ambassador community of 40,000+ dental professionals who spent over 2 years innovating and perfecting the...

Oral Probiotics

+ Expanding Floss & Teeth Whitening Breath Strips

4.8

Rated 4.8 out of 5 stars

4.8 Stars (1,664 Reviews)

$24.99 per probiotics bottle / $5 floss refill every 12 weeks, & $6.99 Teeth Whitening Breath Strips every 4 weeks, cancel anytime.

Probiotics 101 :
We’re on a mission, to tackle bad breath at the source by enriching your mouth with good bacteria. Our powerful probiotics tackle “the root cause” and put bad breath to bed, pronto.
With the help of dentists and hygienists from our Ambassador Community of 41,000+ Dental Professionals,...

Kids Flossables

5.0

Rated 5.0 out of 5 stars

5.0 Stars (194 Reviews)

$3.99 replacement flossable every 12 weeks, cancel anytime.

Flossables 101 :
We wanted to create a product that would make flossing fun for kids and easier for parents at brushing time!
Developed with BURST's community of 40,000+ dental professionals, Flossables are easy to use and come in a delicious strawberry flavor. With a cute grippy smiley face...

Pro Sonic Toothbrush - White

+ Expanding Floss, Whitening Strips

4.8

Rated 4.8 out of 5 stars

4.8 Stars (916 Reviews)

$7.00 replacement head / $5.00 Expanding Floss Bobbin / $14.99 Whitening Strips sent every 12 weeks, cancel anytime.

4.9

Rated 4.9 out of 5 stars

Based on 1,565 reviews

Total 5 star reviews: 1.4k Total 4 star reviews: 89 Total 3 star reviews: 30 Total 2 star reviews: 6 Total 1 star reviews: 14

97%would recommend these products

Slide 1 selected

Open Okendo Reviews in a new window

Write a Review (Opens in a new window)

1,565 reviews

Sort

CH
Carrie H.
Verified Buyer
Reviewed By: BURST Ambassador
Yesterday
Reviewed By: BURST Ambassador
Reviewing
Expanding Floss
Rated 5 out of 5 stars
My favorite FLOSS!
Love this floss!
Was this helpful?
J
Jessica
Yesterday
Reviewing
Replacement Floss
Rated 5 out of 5 stars
5 Stars
Love this floss, and love that I can buy refills instead of an entire new case. I do wish it were still in local stores.
Was this helpful?
R
Robin
1 week ago
Reviewing
Expanding Floss
Rated 3 out of 5 stars
3 Stars
Its a good product and cleans much better than store floss. But for the price they should send you a new dispencer every month. I dont like getting a roll of floss and have to fight it into the old plastic container. And eventuly the plastic container breaks and gets dirty. Please fix this Burst. $12.50 for a little roll of string you would think I could get a new dispencer each time.
Was this helpful?
SC
Sarah C.
Verified Buyer
Reviewed By: BURST Ambassador
1 week ago
Reviewed By: BURST Ambassador
Reviewing
Free Expanding Floss
Rated 5 out of 5 stars
Great flossing
Great floss, isn’t flimsy or break. Fee like it cleans between the teeth not like others
Was this helpful?
A
April
2 weeks ago
Reviewing
Floss Refill
Rated 5 out of 5 stars
5 Stars
I love this floss. Stuff sticks to it so you know its doing its job. Its the only floss I like to use.
Was this helpful?

Expanding Floss

Floss 101

Benefits

Formula

You get

Floss 101

Benefits

Formula

You get

Watch it, shop it

Co-created with 1000s of hygienists & dentists

Go easy on gums

Less gunk = better breath

Instantly expands

See the results

Refillable case for less waste

Curious what people think?

Got questions?

Customers also bought

Country

Expanding Floss

Floss 101

Benefits

Formula

You get

Floss 101

Benefits

Formula

You get

Watch it, shop it

Co-created with 1000s of hygienists & dentists

Go easy on gums

Less gunk = better breath

Instantly expands

See the results

Refillable case for less waste

Curious what people think?

Got questions?

Customers also bought