Expanding Floss

4.9
Rated 4.9 out of 5 stars
4.9 Stars (1,511 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 shred-resistant 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

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

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 1,511 reviews
Total 5 star reviews: 1.4k Total 4 star reviews: 83 Total 3 star reviews: 27 Total 2 star reviews: 6 Total 1 star reviews: 13
97%would recommend these products
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1,511 reviews
  • A Profile picture for Ashley
    Ashley
    Verified Reviewer
    Reviewed By: BURST Ambassador
    Yesterday
    Reviewed By: BURST Ambassador
    Reviewing
    Expanding Floss
    Rated 5 out of 5 stars
    Love, love, love!

    I recently started using Burst products all thanks to my dental hygiene instructor, Mrs. Volpitta and I love this floss so much! As a graduating dental hygiene student, I love that I have a product that I can recommend to my future patients! Love how the floss is thicker annd has more texture and I really feel like my gums are a lot happier and cleaner after using this floss!

  • N
    Nicole
    2 days ago
    Reviewing
    Expanding Floss
    Rated 5 out of 5 stars
    5 Stars

    Love it

  • L
    Linnae
    3 days ago
    Reviewing
    Replacement Floss
    Rated 5 out of 5 stars
    5 Stars

    This is the all time best ever floss. I haven't found one i like better. My dentist always compliments me on my flossing.

  • WM
    William M.
    Verified Buyer
    Reviewed By: Customer
    4 days ago
    Reviewed By: Customer
    Reviewing
    Floss Refill
    Rated 5 out of 5 stars
    Burst floss refill

    Best floss I have ever used and get a lot of flossing sessions from one refill.

  • BH
    Brenda H.
    Verified Buyer
    Reviewed By: Customer
    4 days ago
    Reviewed By: Customer
    Reviewing
    Floss Refill
    Rated 5 out of 5 stars
    LOVE

    I love this floss!!! When I go to the dentist between the toothbrush and the floss I have a quick visit.