“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”
Clinically backed
BPA & PFAS-free
Cruelty-free
24/7 expert support
Refill plan: $5.00 per replacement bobbin every 12 weeks, cancel anytime
You pay today:
$5.00
Why our Floss is boss
Our Floss boldly goes where no other floss has been before, expanding between teeth upon contact with saliva. Deep cleaning and developed with BURST Ambassador Dental Professionals, it's an oral care Holy Grail.
Expanding technology
Saliva makes our floss expand. That means more surface area to give a deeper clean. Gums rejoice!
Charcoal black coating
Adsorbs (we promise that’s a word) coffee, wine, and other lingering stains from your teeth.
See what you clean
Our black Refillable Floss lets you see all the crud hiding between your teeth.
Environmentally conscious
Our case is reusable and comes with a lifetime guarantee. The koalas will love you for using it.
Stain removing
coating
Adsorbs coffee, wine and other hard to remove stains from your teeth.
Textured and expandable
Our floss expands on contact with saliva to give you a clean that’ll impress your dentist.
The 8 Best Lip and Oral Care Products of 2021, According to Health Editors
Curious what people think?
Our BURST Ambassador Dental Professionals and customers know their stuff. You should listen to them.
Rated 4.9 out of 5 stars
4.9 Stars (1,513 Reviews)
“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!”
“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”
“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!!!”
Customers also bought
Total 5 star reviews: 1.4k Total 4 star reviews: 84 Total 3 star reviews: 27 Total 2 star reviews: 6 Total 1 star reviews: 13
97%would recommend these products
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1,513 reviews
- CCicely1 hour agoReviewingFloss RefillRated 5 out of 5 stars5 Stars
My favorite floss! Its expandable, thick, and gets everything out.
- DWDevon W.Reviewed By: BURST Ambassador2 days agoReviewed By: BURST AmbassadorReviewingExpanding FlossRated 4 out of 5 starsGreat floss
First i love that it is black! I like the size and packaging. I am a very big smart floss girly, so when I got this product I was really excited! It works well and it is comparable to smart floss however, its can shred and thats the only downfall I have with it. Overall it is a great choice and affordable! Get it!
- AAshleyVerified ReviewerReviewed By: BURST Ambassador1 week agoReviewed By: BURST AmbassadorReviewingExpanding FlossRated 5 out of 5 starsLove, 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!
- NNicole1 week agoReviewingExpanding FlossRated 5 out of 5 stars5 Stars
Love it
- LLinnae1 week agoReviewingReplacement FlossRated 5 out of 5 stars5 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.