“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 (1,535 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!!!”
Total 5 star reviews: 1.4k Total 4 star reviews: 85 Total 3 star reviews: 27 Total 2 star reviews: 6 Total 1 star reviews: 13
97%would recommend these products
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1,535 reviews
- RRussReviewed By: BURST Ambassador21 minutes agoReviewed By: BURST AmbassadorReviewingExpanding FlossRated 5 out of 5 starsGreat Floss
I love how refreshing it feels! The taste is great and I can see all the stuff it's removing!
- AMAshley M.Verified BuyerReviewed By: BURST Ambassador14 hours agoReviewed By: BURST AmbassadorReviewingExpanding FlossRated 5 out of 5 starsMy favorite floss
This expanding floss is great. I love that it’s black and shows everything. Works so much better than other brands.
- TTomYesterdayReviewingExpanding FlossRated 5 out of 5 stars5 Stars
Great Floss
- KKATHI1 week agoReviewingFloss RefillRated 5 out of 5 stars5 Stars
Love how thick it is
- KKathleenVerified BuyerReviewed By: Customer1 week agoReviewed By: CustomerReviewingExpanding FlossRated 5 out of 5 starsBest floss I have ever tried
My dental hygienist recommended this product to me probably around 2 years ago. I find it too thick to use at first but as the time goes by I got used to it. It’s like a magic thread that cleans every in between teeth. It’s an amazing product and I don’t think I will ever go back to any of the floss I used before. Highly recommend!