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Slate Pro Electric Flosser

Our most powerful clean

Regular price
$129.99
Regular price
Sale price
$129.99
  • Woven floss grabs hard-to-reach plaque and bacteria
  • Gum Sweeps massage and stimulate gums
  • Triple-row tongue scraper lifts, rakes, and squeegees for fresher breath and a cleaner mouth
  • 3 speeds and up to 14,000 vibrations per minute
  • Dentist-founded and recommended

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We recommend swapping floss heads weekly to maintain product integrity. Learn More.

White Smooth Floss Heads

Total Price: every shipment

Your first subscription will ship with your Flosser order.

Free US Shipping over $29 · Cancel Anytime · 30-Day Guarantee · HSA/FSA Eligible

Shipping and Returns

All orders are processed within 1–2 business days (excluding weekends and holidays) after you receive your order confirmation email.

  • Domestic orders arrive, on average, within 4-5 days of the order date. You can find your estimated delivery date at checkout
  • All domestic (US) orders over $29 (including recurring subscription refill orders) qualify for free economy shipping (USPS)
  • All domestic (US) orders under $29 (including recurring subscription refill orders) qualify for $4.99 economy shipping (USPS)
  • We offer international shipping to select regions. Select your country and enter the shipping address to see if shipping is available to your location

See our full shipping policy

We offer a 30‑day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, you must provide a receipt or proof of purchase. Floss head packages must be unopened to qualify for a refund.

Opened Floss Head packages are not eligible for return or refund.

See our full refund policy

Subscriptions

When you add an item to your cart with the “Subscribe & Save” option, you are creating a new subscription for that item and quantity. By doing so, you agree to receive recurring deliveries based on the product, frequency, and duration you select at checkout.

By placing a subscription order, you authorize us to securely store your payment method and charge it automatically for each recurring shipment. Upcoming order reminders are sent three days prior to each scheduled processing date via email and text message.

You may cancel your subscription at any time. If you request to cancel a subscription after an order has successfully been processed, we may not be able to cancel the processed order. Please reach out to support@slateflosser.com immediately for assistance. Shipments already in transit are not able to be modified, canceled, or refunded.

See the full subscription policy

award-winning, and making headlines

"A clean fresh smile has never been easier"

WOMEN'S HEALTH

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Cleaning Everything Your Toothbrush Missed

How to use the Slate Pro Electric Flosser

  • Plaque builds up in the pockets between your teeth and along your gumline, spots brushing alone can't reach. Slate's gum sweeps target those pockets directly, for a deeper clean.

  • Find your most comfortable clean with three adjustable speed settings. Break down plaque and clear out debris from tight spaces with up to 14,000 vibrations per minute.

  • Slate's triple-row tongue scraper removes leftover bacteria in seconds, resulting in fresher breath and completing your oral care routine with just one tool.

  • Most kinds of floss use forever chemicals to help them glide. Slate's woven floss is free of PFAS, PTFE, and Teflon, so you get a better clean without the tradeoff.

  • Ditch the disposable picks. Each floss head rinses clean and lasts a week, just like your toothbrush head. That means there’s less waste and less to restock.

The slate flosser is the #1 Dentist-Recommended Flosser

Trusted by thousands of dental professionals, peer-reviewed by 500+ hygienists, and loved by 300,000+ flossers.

Dr. Brittany Baker DMD
"My favorite thing about the Slate Electric Flosser is how it cleans embrasures with ease. A lot of my patients would benefit from a flosser like this because so many of them floss ineffectively by only going up and down. With Slate, I feel like I have to do way less work to get a better clean!"
Dr. Jayson Wurtzbacher
"The Slate Electric Flosser is awesome! I love how the vibrations help the floss to get through the tight contacts of some of my teeth. The gum sweeps help really get every thing clean and the handle design makes the overall use very simple and convenient. I love the Slate Flosser and highly recommend it!"
Amanda O'Brien RDH
"I love that you can actually reach the backside of the second molars! This device is a game changer for so many patients whom do not have the dexterity to floss with traditional methods. Also love the eco friendly aspect with reusable replacement heads!"
Dr. Chad Smith
"I am a 37 year old dentist and have never been very consistent at flossing until now. The Slate flosser has been the one tool that finally helped me become a daily flosser. It does a fantastic job of cleaning my teeth, it is more comfortable than other options, and it sits right next to my electric toothbrush and makes it so easy to get into a good flossing routine. I have told all my staff to use this flosser."
Casandra Hollis RDH
"The Slate flosser is so great! I feel like the vibrations are super helpful at removing more plaque than traditional floss. I also love the long easy-to-hold handle!"
Dr.  Mara Ganim
"Game. Changer. I can’t say enough good things about the Slate electric flosser! They nailed the convenience of the floss picks, but made it so much better! As a dentist the gum sweeps are my favorite part! That’s what makes this product stand out to me. They really clean the spaces in between your teeth and are super gentle! 10/10 would definitely recommend to family, friends, and patients!"
Dr. Emily Dennison
"I love how easy it is. My teeth feel amazingly clean after! I also love the gum sweeps and the tongue scraper! I always tell my patients that neglecting to clean your tongue is like mopping the floors and not deep cleaning the giant rug in the middle of your mouth."
Dr. Kevin Brown
"I love how easy it is to use and how clean my gums feel when I'm done with it. It's amazing!!!"
Sandra Sikimic RDH
"It's extremely convenient for anyone who finds string floss tedious! I personally love the gum sweeps. It's a brilliant feature! It just levels up what flossing already does for your gum health!"
Amber White RDH
"I love the Slate Flosser because it's super easy to use, and it's great for anyone who finds flossing challenging. Whether you have limitations or are undergoing orthodontic treatment, it's a game-changer. The simplicity and effectiveness make it an essential part of my oral care routine."
Lindsey Hesse RDH
"It is so easy to use! It's an amazing tool for everyone, but especially those with limited dexterity like children or elderly adults."

Floss for your Health

Small Habit.
Big Health Impact.

FAQ

What is Slate's floss made of?

Our floss is ultra-high molecular weight polyethylene (UHMWPE) woven floss, which makes it highly durable and non-toxic. None of our floss is coated or waxed, and it does not contain any PTFEs, PFAs, or other chemicals.

Our Blue and Mint floss heads use woven floss that is infused with nano Hydroxyapatite (nHA) for remineralizing benefits. The Mint is also infused with subtle natural mint flavor. All other floss head colors are unflavored.

You can rest assured that our floss is PTFE and PFAs free!

How long does each floss head last?

The short answer: about one week!

Slate floss heads are reusable (like your toothbrush!) Just rinse and allow to dry after each use, and change out weekly (for regular, daily flossers) for best results.

Those with extremely tight teeth or a lot of dental work may experience some fraying due to increased friction on the floss. We recommend using one of our Smooth floss head options and/or swapping out the floss head every 3-5 days if needed.

Those that floss more casually might not need to change floss heads as often!

Use our "Roll & Sweep" technique for best results and to get the intended lifespan out of your floss heads!

How long will a box of floss head refills last?

We recently changed our floss head refill packaging to 12-pack, 24-pack, and 3-pack (sample) options.

With the intended one week per floss head usage rate, you should get about 3 months of use from a 12-pack and around 6 months of use from a 24-pack. We made the packaging switch to be more in line with how often dentists recommend changing out your toothbrush (every 3 months).

If you sign up for a subscription for floss head refills, you can customize the frequency of your refill shipments based on your needs!

Are the Slate Electric Flosser models waterproof?

YES! The Slate Pro has an IPX7 rating and the Slate Origin has an IPX5 rating. This scale ranges from 0 (no protection) to 8 for the highest level of protection.

Both of our electric flossers (Pro and Origin) are safe to use in the shower if you’d like.

We do recommend that you allow the floss head to fully dry between uses to prevent bacteria growth.

How do you remove a floss head?

To remove a floss head, place your thumb on the back of the neck of the flosser, just below the tongue scraper and press down firmly on a hard surface until it pops off.

HOW TO USE VIDEO
How do you connect a new floss head?

To connect a new floss head, slide the top of the flosser neck up through middle of the floss head and press firmly on the back of the tongue scraper until it snaps in on both sides (make sure the interacting logos on the flosser and the floss head are both pointing upward).

HOW TO USE VIDEO
Can the Slate Flosser be used around crowns or veneers?

Yes! It is very important to continue flossing regularly in areas with veneers or crowns. If you have any sharp edges or areas that are catching on the floss string, talk to your dental professional about smoothing those out!

Here's a great blog post about why using the Slate Electric Flosser is perfect for crowns and veneers:
READ BLOG

Can the Slate Flosser be used with a lingual bar (permanent retainer)?

Unfortunately, Slate floss heads cannot be used to floss in areas with a permanent retainer.

You can still use the Slate Flosser and floss heads on your molars, where most cavities form!

Can the Slate Flosser be used with a bridge?

At this time, we do not offer any Slate products that are able to work in areas with a bridge.

Can HSA/FSA funds be used to purchase Slate products?

Yes! Slate partners with Sika Health to offer payment via HSA/FSA.

Look for the Sika HSA/FSA Accepted mark on any approved Slate product page. When you add the approved item to your cart, select the One-Time Purchase option (subscription purchases are not eligible).

Some Slate product bundles are not eligible due to non-medically necessary items being included in the bundle.

At checkout, select the Checkout as Guest option to ensure that payment information doesn't autofill from Shop Pay. Select Sika - Pay with your HSA/FSA as the Payment method. After clicking Pay Now, you will be redirected to Sika Health to complete a brief health questionnaire, get a letter of medical necessity (LMN) and complete your purchase securely. Sika will email you copies of your LMN and receipt for reimbursement documentation.

How can I manage my subscription?

You can enter the email address used on your subscription account here to get a verification code sent to you via email and text.

If you don't see the verification email, please check Spam or Junk folders! A verification email will not be sent if there is no subscription account under that email address.

Upcoming Order notifications are sent via email and text 3 days prior to every shipment. You can easily manage settings via 2-way text, or by logging into your Account Page via the link.

We love our subscribers, and want to make sure your preferences are customized to your needs! You can swap products, add one-time extras, set your next shipment date, skip a shipment, or cancel the subscription anytime.

Is shipping free?

We offer free shipping on all orders (including recurring subscription orders) over $29 within in the United States.

If you have a subscription for one 12-pack of floss heads every 3 months, we recommend switching to a 24-pack every 6 months instead if you'd like to get free shipping!

Shipping costs for International orders will calculated at checkout, and include applicable duties and fees.

View our full Shipping Policy below.

SHIPPING POLICY
What is your return policy?

30-day money back guarantee!

Slate offers a 30-day return policy, which means you have 30 days after delivery to request a return. To be eligible for a return, you will need your order number and email address used on the order.

To start a return, you can submit a request using this link: https://slateflosser.com/apps/redo/returns-portal/login.

If your return is accepted, we’ll send you a return shipping label and instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

Opened floss head refills are not eligible for a return.

View our full Refund/Return Policy Below.

REFUND POLICY
Does Slate have a program for Dental Professionals?

Yes, Slate has a great Dental Professionals program that we would love to have you join. You can find out more and sign up HERE.

Complete the Clean

Customers praised this electric flosser for making flossing easier and more enjoyable, with many noting improved gum health and positive dentist feedback. The vibration, gum stimulators, and tongue scraper were highlights. Some concerns included floss heads fraying/breaking prematurely, difficulty with tight teeth, short timer, and cost considerations.

  • 5 stars: 212 (85%)
  • 4 stars: 18 (7%)
  • 3 stars: 4 (2%)
  • 2 stars: 5 (2%)
  • 1 star: 10 (4%)
Some of the reviews shown are from related products the merchant grouped with this one.
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Rachelrenee (Metairie, US)
Very happy with my purchase

Very happy with my purchase. I purchased the pro double pack for myself. The floss is more than one piece on the flosser head & the gum simulators feel really nice. It is almost like a massage on my gums. Very unexpected. It cleans very well. I also purchase the flosser caps for each flosser.

G
Gtmkomay (Viroqua, US)
Flossing with Slate is soooo easy!

Flossing with Slate is soooo easy and I love the little silicone scrubbers:) I work in a dental office and recommend this all the time!!!

K
Kourtney P. (Livonia, US)
Love how easy it is to use and how clean my teeth

Love how easy it is to use and how clean my teeth feel.

A
Anonymous (Westfield, US)
Love it

I love this Flosser. It’s well made the battery lasts a long time. The floss heads are easy to put on and take off.

E
Emily M. (Canoga Park, US)
I ACTUALLY ENJOY FLOSSING NOW

I hate flossing. I went the water pick route for years only to have to replace it every couple of months because of my fear of mold. I finally made an "adult purchase" knowing I was investing in my health. I'm so happy I did. I actually look forward to my oral care routine every night (never thought I would say that). I love that the flossers are actually sturdy enough to last a week & made from non-tox materials. Worth every penny!

Thank you so much for taking the time to share your great feedback. We're so happy to hear that the Slate Rechargeable Electric Flosser has made flossing enjoyable for you! Thank you for choosing Slate and for sharing your kind words. Happy flossing!

S
Shar (New York, US)
Underwhelmed

I had high hopes because it’s 1) electric, and 2) the flosser heads are supposed to be changed weekly, or so I thought. I just purchased off of Amazon a week ago, and so far have replaced the flosser heads 4 times because the thread split. What this means is, I still must rely on manual flossers. However, the tongue cleaner is a plus. Overall, I’m disappointed. I expected with such a hefty price, the floss thread would have been a lot sturdier and gentler to my gums. I also noticed that the thread can cut the gums if used with a heavy-hand. If considering purchasing, save your money. I’m pretty upset that I can’t receive a refund as it’s already been used.

A
Amanda (Maple Grove, US)
Very sleek design and easy to use

Very sleek design and easy to use. I like how I can just charge it right next to my electric toothbrush..

P
Perla A. (El Paso, US)
Great Concept, Needs Work

I was really excited to get this and step up my flossing game. Really in-between Slate and Flaus for a really long time. I decided to go with Slate for a few reasons. 1 - the reusable floss heads, 2 - built in tongue scrubber and 3 - the size of the handle. However, I was extremely let down by the floss head already fraying by the second day of use and the fibers getting caught in between my teeth. The floss head is supposed to last 5 days to a week and it clearly does not. I wish I would've taken the other reviews more seriously of those experiencing the same issues while following directions. The tongue scrapper is a nice add on but the floss head is so bulky that once you flip it over to use the scrapper, it really only reaches the first half of the tongue. Lastly, I find doing manual flossing, followed by a water flosser is more effective than this. I really want to return this and get my FSA funds back.

A
Ashley W. (Raleigh, US)
Best Gift Idea Ever. 10/10 No Notes

I got this set as a gift for my grandparents and my in-laws and they love it!! It has everything they need to get into the habit of flossing easily. I have the slate electric flosser and the mini already so this set is really just all of my favorite things combined!! So nice to have a box of floss head refills included and the process to subscribe for more refills is super easy. Can't recommend this product enough!

Amazing! What an incredibly thoughtful gift for those family members! Thank you so much for sharing your wonderful feedback, Ashley.

C
Chasya U.S. (Tel Aviv, IL)
Best Flosser in the World from Across the World!

We are a family dedicated to the Slate flosser. So much so, that we have stayed with the company from the battery operated ones to now the new rechargeable ones! Our gums and teeth are in their best health, thank you to Slate! We are waiting for three new ones to be with our fourth new flosser!

Thank you for your kind words, Chasya. We're so glad that you're loving your Slate flossers. We appreciate your continued support!

L
Levashhhh (Ridgefield, US)
LOVE

I absolutely LOVE this flosser. It's so easy to use, feels nice and keeps my teeth so clean. I loathe wrapping floss around my fingers, this device takes away that dread. It's nice to properly floss, the backs of my lower front teeth still look like I had a cleaning done. Amazing. Instead of dreading flossing, I am truly enjoying it.

Wow, thank you so much for your kind words and for sharing your positive experience with our Slate Rechargeable Electric Flosser! We're excited to hear that it has made flossing a more enjoyable experience for you and has left your teeth feeling clean. We appreciate your support and are happy to have you as a satisfied customer. Keep up the great work flossing with Slate!

S
Sheila (Gillette, US)
The joy of flossing

Love the unit. Wish it came with an adapter so I could use it right away instead if having to go to the store to purchase one.

Thank you so much for your review and feedback, Sheila! FYI, your flosser comes fully charged out of the box and should only need to be charged every few MONTHS! You can use any USB-C adapter/charging block with the charging cord that comes in your flosser kit! Happy flosing!

S
Sarah B. (Cheshire, US)
Not enough width of the opening for molars to floss

This is all in all a great flosser but the design is faulty for those of us with wider molars. The edges of the gadget holding the floss center are not wide enough to fit my molars and the floss will not go in no matter how I rock it. I need a wider head. I will be returning this as I have tried my best to no avail. I do have two less expensive electric flossers that do fit my teeth so I know that it is not a user error.
Please notify me if you make a floss head with more length of floss and wider sides.
S, B
Cheshire, Ct USA

Thank you for your honest feedback about our Slate Rechargeable Electric Flosser. We understand the importance of having a flosser that fits comfortably for all users. We do have a thin floss head option that I wonder if would be a better fit. We'd love to send you a smaple to see if it works in between your molars. Feel free to email us at support@slateflosser.com!

R
Rochelle
LIVE FOR MY FLOSSER

The Slate should be in every household it’s helped me become a flossing girlie, love it so much it’s easy to work and my whole family loves it. It cleans my gums and my teeth so well it’s battery. Life is phenomenal. Everything about this is so good.

Thank you for sharing your positive experience with our Rechargeable Electric Flosser. We are thrilled to hear that it has helped you become a flossing pro and that your whole family loves it. Thank you for choosing our product and for taking the time to leave such a kind review. Happy flossing!

S
S.B. (Lehi, US)
Changing the Flossing Game

Went to the Pinners Conference over the weekend and ran into Brynn and her incredible team. I never would have thought I'd stop by a floss company's booth, but here we are – and I’m so glad I did!

I've struggled to make flossing a consistent habit over the years, though I’ve gotten better about it recently. This chance encounter felt like serendipity.

I had a million questions, and they took the time to walk me through what the Slate Flosser can do and how it could even replace my water pick. I wasn’t the easiest sell, but they patiently answered every question. Their passion and knowledge were clear, and the product's innovation truly won me over. I went home with the Slate Flosser and tried it that same night. MINDBLOWN.

It’s super easy to use, and the sonic technology takes it to the next level. After one use, I felt like I’d never truly experienced a clean mouth before – a good floss and tongue scrape really do make a difference!

Huge shoutout to the Slate team for creating such an incredible product and delivering a fantastic experience. They’ve got a loyal customer here!

Thank you so much for taking the time to leave such a wonderful review. We are thrilled to hear that you had a great experience at the Pinners Conference and that you are loving the Slate Flosser! We are passionate about helping our customers achieve a clean and healthy mouth, and we are glad that our product has won you over.
We are even more delighted to have you as a loyal customer! Thank you for choosing Slate and we hope to continue exceeding your expectations.

C
C.S. (Spokane, US)
Best purchase I've ever made besides my Sonicare

This flosser is the best thing I've ever added to my nightly routine (in addition to my electric toothbrush). It makes flossing so easy that I now often floss twice a day; I used to "occasionally" floss before but I haven't skipped a day of flossing since getting it. I'm so, so happy with how clean it makes my teeth feel. My hygienist even commented on how good my gums looked at my last dentist appointment - using this single tool stopped all bleeding and sensitivity around my crowns by reaching areas my toothbrush simply couldn't. But more than anything, I love the tongue scraper on this thing! I purchased it for my kids (ages 11 and 9) and they now floss every night too without complaint. 10/10 would recommend.

Thank you so much for taking the time to leave such a positive review on the Slate Rechargeable Electric Flosser. We're thrilled to hear that it has become an essential part of your nightly routine and has even improved your oral health. We're especially happy to hear that your kids have also started flossing regularly with the help of this product. Your hygienist's comment on your healthy gums is a testament to the effectiveness of our flosser. Thank you for recommending it to others. Keep smiling and flossing! :)

W
Webb K. (Madison, US)
Finally something that makes flossing fun!

I've had a super positive experience with the Slate flosser! I've tried a number of different flossing products over the years – floss sticks, the Quip floss product, flavored floss like Cocofloss, etc. – and none have been great, but this is the first time I can honestly say I've actually enjoyed flossing! So, thank you to Slate for inventing something really cool that seems like it will finally turn me into a regular flosser. 😃 This product is truly a game changer.

That's awesome to hear! If it helps you start flossing regularly then that's a win!

j
joel w. (Minneapolis, US)
Can't live without it now

This has become my favorite part of my nightly routine. To me, it seems this thing cleans better than either brushing or regular flossing. I always pack it for trips and would love to buy a Slate travel case if you guys plan to make one of those!

We are so glad you use it daily! One of our goals with Slate is that it helps people become regular flossers! Great idea on the travel case!

B
Becky E. (McPherson, US)
I have never been a regular flosser

I have never been a regular flosser due to tight molars and limited reach; and I never have liked any brand of OTC floss sticks. But I can say that after two weeks with the Slate Pro -- I love it! My only disappointment was making the purchase before realizing I could claim a free mini -- so I'm hoping I can still get one if possible. It has been a great addition to my daily routine & I hope my dentist will see the difference!

S
Sandy (Elko, US)
Love it - so much easier!!

I’m very consistent with flossing daily as I’m well aware of the importance but I always viewed it as a chore that needed to be done. But that’s changed now that I purchased the Slate electric flosser! I’ve been using it for a couple months and love it! It’s so much easier and quicker than constantly wrapping floss around my finger and going through that routine - I can’t imagine going back to the old way!