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Replacement Floss

The boss of all floss

4.8
Rated 4.8 out of 5 stars
4.8 Stars (1,861 Reviews)
Regular price $5.00
Sale price Regular price

Select the refill designed for your case.
Each refill is precision-made to fit its matching dispenser for a seamless, tangle-free experience.

Dentist & HygienistsBacked by 40,000+ dental professionals
Aroma: Mint Eucalyptus

Pack options:

For the Expanding Floss Case. Compact, powerful, and ready to keep you flossing for another month.

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

Watch it, shop it

See what people think and shop the faves.

BURST Oral Care

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.

BURST Oral Care

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.

BURST Oral Care

See the results

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

BURST Oral Care

Refillable case for less waste

Reduce and reuse with our lightweight, compact, 95% recycled plastic case and 32-yard replacement bobbins.

Curious what people think?

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

Marisa P.

RDH, BURST Ambassador

"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 is just so satisfying. Never thought I'll 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."

Nicole K.

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. I love that it is helping remove the stains from my teeth due to my coffee addiction. And it tastes AMAZing!"

Jenee C.

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! It's fine enough to reach all those hard to get to places also!!!"

Got questions?

More questions?
Find answers on our FAQs page.

FAQs page
4.8
Rated 4.8 out of 5 stars
Based on 1,861 reviews
95%would recommend these products
1,861 reviews
  • Rated 5 out of 5 stars
    6 months ago
    The best floss!

    As a hygienist I have tried many variations of floss. Burst by far is the best floss! I recommend it to EVERY patient. All the patient feedback has been very positive as well!

    B
    Brianna
    Verified Reviewer
    Mint Eucalyptus Expanding Floss
  • Rated 5 out of 5 stars
    6 months ago
    THE ONE

    As a hygienist my search for the perfect floss is over!! This is so durable it doesn’t shred when I’m flossing patients teeth. The expanding feature means it’s grabbing more junk. It’s eco friendly with refillable containers. It’s AFFORDABLE but elite!! It checks all of my boxes!

    SR
    Stephanie R.
    Mint Eucalyptus Expanding Floss
  • Rated 5 out of 5 stars
    7 months ago
    Best Floss hands down!

    Got desperate for a new floss after years of using oral b. They changed their floss recently to some plastic garbage that absolutely does not work. Terrible product oral b! Even my hygienist saw the bad results after my last visit. So I went into cvs determined to find another brand. I saw the Burst floss and gave it a shot. OMG it’s the best! It grabs everything between my teeth that my brush doesn’t get. You actually see the results on the black floss. I know I might seem overly excited about dental floss and it’s from years and lots of $$$$ on dental work from not flossing. Big mistake. Since adding flossing and water pic and electric toothbrush my dentists bills are basically just cleaning charges. Now i need to look into Bursts other products. New fan!

    M
    Margie
    Verified Reviewer
    Mint Eucalyptus Expanding Floss
  • Rated 5 out of 5 stars
    8 months ago
    Best floss available today!

    I’ve been trying to find a great floss ever since the expanding floss I used to use was discontinued. Finally stumbled upon Burst and absolutely love it. It’s strong, feels like it’s really cleaning my teeth, and doesn’t shred or split. I took some in to my dental hygiene appointment today and they were really excited about it. Gotta love the funky black color too!!

    CB
    Chris B.
    Verified Reviewer
    Mint Eucalyptus Expanding Floss
  • Rated 5 out of 5 stars
    9 months ago
    Floss

    LOVE the black floss! You may find this gross, but it is so satisfying to see all the stuff you floss out!

    CS
    Chris S.
    Verified Reviewer
    Mint Eucalyptus Expanding Floss
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