Expanding Floss

4.9
Rated 4.9 out of 5 stars
4.9 Stars (1,540 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

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 1,540 reviews
Total 5 star reviews: 1.4k Total 4 star reviews: 86 Total 3 star reviews: 27 Total 2 star reviews: 6 Total 1 star reviews: 13
97%would recommend these products
Slide 1 selected
1,540 reviews
  • LA
    Leland A.
    Verified Buyer
    Reviewed By: Customer
    Yesterday
    Reviewed By: Customer
    Reviewing
    Replacement Floss
    Rated 5 out of 5 stars
    Best floss for gapped teeth, and for any teeth for that matter

    I love Burst floss. I bought this floss when I was researching which floss was the thickest floss out there. I actually used to use the polar oppposite, Glide, and realized it was a) not good for my gapped teefs, and b) just not a good floss overall.

    I have a missing permanent tooth and my teeth are overall far from each other because of it - not necessarily GAPPED, but there are bigger spaces in between my teeth where food can get stuck in, so I was in the market for a thicker floss because the one I was using, Glide, I pretty much had to fold over so it could be thicker - and other flosses just felt too thready and not easy to use.

    Burst floss I literally will never change unless they start using yarn for floss. I even have dang subscription for it to come every 3 weeks or something, I forget, AND I buy a good amount of replacements for each bag I carry with me - my two fanny packs, my work bag, and each bag has a second replacement floss just in case the first one gets low.

    Burst floss is goated - no, no one's paying me, I just have a thing for flossing.

    BO Profile picture for BURST Oral Care
    BURST Oral Care
    4 minutes ago

    Wow - this made our day! We're so happy the Burst floss checks all the boxes for you. Thanks for the love (and the fanny pack backups)! 🖤

  • MC
    Margaret C.
    Verified Buyer
    Reviewed By: Customer
    6 days ago
    Reviewed By: Customer
    Reviewing
    Expanding Floss
    Rated 5 out of 5 stars
    My favorite floss

    My hygienist recommended this and it’s the best floss I’ve ever used!!

  • M
    Michael
    1 week ago
    Reviewing
    Expanding Floss
    Rated 5 out of 5 stars
    5 Stars

    This stuff works fantastic!

  • J
    Janet
    1 week ago
    Reviewing
    Replacement Floss
    Rated 5 out of 5 stars
    5 Stars

    I absolutely love this dental floss

  • DM
    David M.
    Verified Buyer
    Reviewed By: Customer
    1 week ago
    Reviewed By: Customer
    Reviewing
    Replacement Floss
    Rated 4 out of 5 stars
    Excellent & expensive

    The best floss but it does cost. It really is next level, though it is thick so some people might not like it but I love it. My only gripe is how expensive and difficult it is to get the refills. I never see refills in stores and buying direct throws $5 more for shipping on an already expensive item. Subscribing still incurs shipping cost.

    BO Profile picture for BURST Oral Care
    BURST Oral Care
    1 week ago

    Thanks for the honest and thoughtful review. We're so glad you love the floss! 😊 We hear you on the refill concern. While single refill orders have a $1 shipping fee, many customers choose to get two at a time, which ships free (for expample 2 every 24 weeks instead of 1 every 12 weeks). If you’d like help adjusting your subscription or placing an order, please feel free to reach out - hello@burstoralcare.com - we’re always happy to help!

    • Burst Customer Experience Team