Expanding Floss

4.9
Rated 4.9 out of 5 stars
4.9 Stars (1,593 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.

Pack options:
1 pack (40 yards) of Expanding Floss

Refill plan: $5.00 per replacement floss every 4 weeks

Aroma: Mint eucalyptus

Refill plan: $5.00 per replacement floss every 4 weeks, cancel anytime

Refill plan: $5.00 per replacement floss every 4 weeks, cancel anytime

You pay today:  $5.99
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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

Go easy on gums

Textured, soft, shred-resistant, expanding thread scrubs away debris while pampering gums. 

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.

Instantly expands

Expands on contact with saliva to scrub more surface area than typical floss.

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.

Got questions?

More questions?
Find answers on our FAQs page.

4.9
Rated 4.9 out of 5 stars
Based on 1,593 reviews
Total 5 star reviews: 1.4k Total 4 star reviews: 92 Total 3 star reviews: 30 Total 2 star reviews: 7 Total 1 star reviews: 16
97%would recommend these products
Slide 1 selected
1,593 reviews
  • EH
    Elizabeth H.
    Verified Buyer
    Reviewed By: Customer
    4 minutes ago
    Reviewed By: Customer
    Reviewing
    BURST Expanding Dental Floss - Stain-Absorbing, Woven Tooth Floss with Xylitol Coating to Fight Cavities - Vegan, Paraben Free - Mint Eucalyptus Mouth Care Comfort Plastic Oral
    Rated 4 out of 5 stars
    Floss

    Love it

  • TB
    Taylor B.
    Reviewed By: BURST Ambassador
    Yesterday
    Reviewed By: BURST Ambassador
    Reviewing
    Expanding Floss
    Rated 5 out of 5 stars
    Expanding floss

    Love this floss!!! Really helps get food and debris out of teeth that are not sitting as close to one another by this floss ability to expand! Amazing!!

  • T
    Tom
    2 days ago
    Reviewing
    Floss Refill
    Rated 5 out of 5 stars
    5 Stars

    Great product

  • MC
    Morgan C.
    Verified Buyer
    Reviewed By: Customer
    2 days ago
    Reviewed By: Customer
    Reviewing
    BURST Expanding Dental Floss - Stain-Absorbing, Woven Tooth Floss with Xylitol Coating to Fight Cavities - Vegan, Paraben Free - Mint Eucalyptus Mouth Care Comfort Plastic Oral
    Rated 5 out of 5 stars
    Works great!

    I have teeth that can be difficult to clean properly. With this floss I can get into all the hard reach spots for a thorough clean.

  • LH
    Laurie H.
    Verified Buyer
    Reviewed By: BURST Ambassador
    1 week ago
    Reviewed By: BURST Ambassador
    Reviewing
    Big Floss Dispenser- Floss Bobbin
    Rated 5 out of 5 stars
    Never Run Out Of Floss Again!!

    BURST expanding floss is my absolute favorite floss ever!! It allows you to see what is coming off the teeth because it is black. It expands as it gets wet so it grabs more stuff and it’s coated with xylitol which is a super hero in itself!! Best floss ever!!!