Floss
Floss
Floss
Floss
Floss
Floss
Clinically proven
BPA & Teflon-free
Cruelty-free
XL size
24/7 expert support

Big Floss Dispenser

4.9
Rated 4.9 out of 5 stars
4.9 Stars (36 Reviews)

XL SIZE - 6.8x more floss per spool

$59.99 $59.99

Made with input from our community of 40,000+ dental professionals, the Big Floss Dispenser delivers 273 yards of Expanding Floss—proven to remove 2x more plaque* than standard floss. Lab-tested for effectiveness, it provides months of superior cleaning for the whole family. Sleek and user-friendly, it sits neatly on any bathroom counter or operatory, keeping premium floss always within reach.

Aroma: Mint Eucalyptus
*In laboratory tests; data on file at burstoralcare.com/clinical.
Pack options:
Our longest-lasting spool (273 yards) — 6.8x the floss, same signature clean.

Refill plan: $30.00 for the BFD replacement floss bobbin every 24 weeks

Aroma: Mint eucalyptus

Refill plan: $30.00 for the BFD replacement floss bobbin every 24 weeks, cancel anytime

Refill plan: $30.00 for the BFD replacement floss bobbin every 24 weeks, cancel anytime

You pay today:  $59.99 $59.99

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!

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 (36 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?

More questions?
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4.9
Rated 4.9 out of 5 stars
Based on 36 reviews
Total 5 star reviews: 34 Total 4 star reviews: 1 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
97%would recommend this product
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36 reviews
  • P
    PATRICIA
    4 minutes ago
    Rated 5 out of 5 stars
    5 Stars

    Love the size and not having to refill it often

    Was this helpful?
  • SD
    Susan D.
    Verified Buyer
    Reviewed By: Customer
    2 days ago
    Reviewed By: Customer
    Rated 5 out of 5 stars
    Burst is the Best

    Great quality. Love it

    Was this helpful?
  • I
    irene
    2 weeks ago
    Rated 5 out of 5 stars
    5 Stars

    Best floss ive ever used. I'm a dental hygienist, so I've tried many

    Was this helpful?
  • Z
    Zuly
    Verified Buyer
    Reviewed By: Customer
    4 weeks ago
    Reviewed By: Customer
    Rated 5 out of 5 stars
    Big Fan!!

    I’m a big fan of this large floss dispenser. Not only does it give me enough floss to last for months, the dispenser works great and the floss itself is high quality, and feels great to use. I love not having to worry about running out quickly.

    Was this helpful?
  • JK
    Jessica K.
    Verified Buyer
    Reviewed By: Customer
    1 month ago
    Reviewed By: Customer
    Rated 3 out of 5 stars
    Good idea, not great construction

    When I received the big floss dispenser, the metal piece that you cut your floss with came off the first time I tried to use it. It's so much plastic that I did not want to reach out for a replacement. I have super-glued the metal piece back on and it's holding for now, but I think I'll be re-gluing it regularly. The floss itself is fantastic and I highly recommend it.

    Was this helpful?
    BO Profile picture for BURST Oral Care
    BURST Oral Care
    3 weeks ago

    Thanks so much for taking the time to share this feedback. We’re glad to hear you’re loving the floss itself, but we’re really sorry the dispenser’s cutter piece came loose on you. That’s not the experience we want for anyone. Your DIY fix is impressive, but you shouldn’t have to keep re-gluing it. We’ve passed this along to our product team so we can keep improving the dispenser design. We truly appreciate you recommending the floss and helping us get better!