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Clean Living ReviewsIndependent reviews of plastic-free products
Advertorial Clean Living Reviews reviewed
⚠ Evidence file // Unsealed

5 Things The Oral Care Industry Doesn't Want You To Know About Your Toothbrush

Twice a day you scrub a stick of petroleum plastic into your gums. The big brands know what comes off it. They're counting on you never asking.

A used, splayed plastic toothbrush sealed in an evidence bag with a red EXHIBIT 01 tag, next to a folder stamped CONFIDENTIAL
Show me all 5 ↓

// 50,000+ people already threw theirs out. Read why.

3,192.

That's the estimated number of plastic bits your toothbrush sheds every time you brush.
Into your gums… the thinnest, most blood-rich tissue you have.

Twice a day. 730 times a year.
2.3 million particles. From one brush. In one mouth.

Yours.

Nylon bristles under magnification. Illustration.

The big brands have seen the studies.
They changed the colours. They changed the handles.
They never changed the plastic.

Read all five before you brush tonight.

01 Exhibit one// What comes off it

Your toothbrush is shedding plastic into your mouth. Every single time.

Nylon bristles are plastic.
Plastic wears down when you scrub it.

Every stroke frays the tips.
Every frayed tip breaks into bits too small to see… and too small to spit out.

Those bent, splayed bristles aren't wear and tear.
They're plastic leaving the brush.

So where does it go?

Evidence 01 // Particle count
3,192per brushing
2.3 millionper year
Ecotoxicology and Environmental Safety, 2025 · PMID 40680448
02 Exhibit two// Where it goes

It gets in through the thinnest skin in your body.

Your gums aren't like the skin on your arm.
They're thin. Packed with blood vessels.
They absorb up to 10x faster than skin.

And you scrub plastic into them morning and night.

3D illustration.

Here's where it's turning up:

  • In your blood.Researchers have found microplastics in human blood.
  • In your heart.Artery plaque that held microplastics came with 4.5x the risk of heart attack, stroke or death.
  • In your brain.About a spoonful measured in human brain tissue… and up to 10x more in dementia brains.
  • In your hormones.BPA, phthalates and PFAS ride along on plastic. All tied to hormone disruption… the system behind your energy, weight and fertility.
Body map: a translucent figure with five glowing points at the brain, gums, heart, blood and hormone glands
BrainUp to 10x more in dementia brains
GumsUp to 10x faster than skin
Heart4.5x the risk of heart attack, stroke or death
BloodFound in human blood
HormonesBPA, phthalates, PFAS: tied to hormone disruption

It's not the only plastic in your life.
But it's the one you press into your gums 730 times a year. And the easiest to remove.

Show me the brush with zero plastic → 4-box Black Friday bundle: −36% + free box & ebook · 60 days, money back

If you stop here, they win. Three exhibits left.

03 Exhibit three// The walkout

50,000+ people have already thrown the plastic one in the bin.

Nobody ran a campaign. People read the studies you just read… and binned the brush.

Evidence 03 4.9/5 from 1,284 reviews
50,000+ people switched
Sarah · Brussels, BE · Horse bristle

"Read the study at night. Every plastic brush in the house was in the bin by morning."

Lena · Munich, DE · Horse bristle

"Every 'soft' nylon brush made my gums bleed. This one doesn't. And it still cleans."

Thomas · Liège, BE · Boar bristle

"Worried about loose bristles. Two or three the first days, then nothing."

Two brushings a day. 50,000+ mouths.
That's 100,000 plastic brushings a day the industry just lost.

So why isn't there one natural brush at your supermarket?
Two reasons. The first one is probably in your bathroom right now.

04 Exhibit four// The fake fix

The "eco" brush you switched to? Still plastic. Maybe moldy.

So the industry printed a new label.

"Plant-based bristles." "Castor oil bristles."

Castor oil bristles are nylon-11.
Different crop. Same plastic.
It still frays. It still sheds.

An unbranded 'plant-based bristles' toothbrush pack with a red STILL NYLON stamp across it

The cheap "bamboo" brush? Bamboo handle. Nylon bristles.
The natural part never touches your mouth.

Cheap bamboo is raw and untreated. It sits in a wet cup all day.
In one study, 76% of cheap bamboo brushes tested positive for Candida… the fungus behind oral thrush.

Cheap glued plastic heads aren't cleaner.
97% of used toothbrushes carry bacteria. Mold and yeast included.

A raw, untreated bamboo brush with nylon bristles standing in a cup of water, with dark mold at the wet base

The problem isn't bamboo.
It's raw bamboo left standing in water… and glue wells where gunk sits.

Remember that. It matters in a minute.

So what's left? A brush with no nylon. No glue. Nothing sitting in water.
It existed for centuries. Exhibit 5 is why you've never seen one.

05 Exhibit five// The one they buried

The fix is older than nylon. That's why they'll never sell it to you.

Before 1938, nobody brushed with plastic.
People used natural bristle on a natural handle. For centuries.

Nylon didn't win because it cleaned better. It was cheaper to make.

And there's no money in the old way.
You can't patent a boar bristle. Or relaunch it every spring in a new colour.

Sepia archive-style picture of a 1930s pharmacy shelf with natural-bristle brushes on wooden handles
Before 1938
Illustration: a pharmacy shelf before nylon.

So I went looking for a brush with no plastic anywhere.
Not in the handle. Not in the bristle. Not in the glue.

Almost every one failed the same test.

// The brush they didn't put on the shelf

I found one brush with zero plastic. Not "less." Zero.

Turn the pack over. You'll read "nylon." Or "castor-based."

One didn't.
It's called URVA.

The URVA box and four URVA brushes standing upright on a stone bathroom sink in morning light
Natural bristleNylon after use
Illustration.
  • Natural boar bristle. Firm and naturally tapered for a deeper clean. Zero nylon… so nothing plastic breaks off in your mouth.
  • Glue-free woven head. Most brushes set bristles in adhesive and epoxy. URVA weaves them in. No glue wells.
  • One-piece heat-treated bamboo handle. Heat-treated… not raw. It stands upright, so it dries between brushings instead of sitting in a wet cup. The opposite of the cup brush in Exhibit 4.

Zero nylon. Zero plastic. Bristle to base.

One URVA brush standing upright, with callouts for the boar bristle, the glue-free woven head and the heat-treated one-piece bamboo handle
Boar bristle
Glue-free woven head
Heat-treated one-piece bamboo: stands up, dries
// Choose your bristle

Firm or extra-soft? Pick the one your gums want.

Boar: firm, deep clean.

For most adults. Tapered tips clean deep without nylon's hard scrape.

Horse: extra-soft.

For sensitive or bleeding gums… or anyone who brushes too hard. The softest natural bristle there is.

Two URVA brush heads side by side: cream boar bristle on the left, dark brown horse bristle on the right
BoarFirm · Deep clean
HorseExtra-soft · Sensitive gums
Sensitive gums? Get horse bristle → Extra-soft · zero plastic · 60 days, money back

Can't decide? The 4-box bundle comes with a free box of the other bristle. Try both.

Plastic, "eco" or URVA: only one has nothing to shed.

EVIDENCE: SIDE BY SIDE
Feature
Plastic brush
"Eco" bamboo / castor
URVA
Bristle
Nylon
Nylon or nylon-11
Natural boar or horse
Sheds microplastics
Yes
Yes
No plastic to shed
Glue in the head
Usually
Usually
Woven, glue-free
Handle
Plastic
Raw bamboo
Heat-treated one-piece bamboo
Dries standing up
No, sits in a cup
Often can't stand
Stands upright
Get my 4 boxes + 2 free gifts → 4-box: €89.90 instead of €139.60 · ships free to FR, BE, DE
// The questions everyone asks

Hygiene? Loose bristles? The price? Straight answers.

"Is a natural bristle hygienic?"

Germs love two things: glue wells and standing water. URVA has neither.
Replace it every 3 months, like any brush.

A URVA brush standing upright on its own on a bathroom shelf, drying in window light
"Will bristles fall out?"

A few in the first days is normal for a glue-free head. It settles within a week or two.
That's the trade for zero glue in your mouth.

"€34.90 for toothbrushes?"

It's 4 brushes. A year for one person. Under 5 cents a brushing.
In the 4-box bundle, with the free box, it drops under 3 cents.

"Does it clean as well as nylon?"

The tapered tips reach between teeth. The word buyers keep using is "polished."

// Witness statements

"Not going back." What switchers say.

Camille · Lyon, FR · Boar bristle

"My teeth feel polished, like after the dentist. Finally no plastic on my sink."

Julien · Bordeaux, FR · 4-box bundle

"Took 4 boxes for the family. The free horse box went to my wife… sensitive gums."

Jonas · Hamburg, DE · Boar bristle

"Thought the price was steep. Then I did the math: under 5 cents a brushing. Not going back."

// The offer

Black Friday: the 4-box bundle is −36% with 2 free gifts.

4 boxes · 16 brushes€139.60
+ Box of the other bristle€29.90 FREE
+ Ebook The Plastic-Free Mouth€14.90 FREE
Total value€184.40
Your price€89.90
★ Best value

4 boxes

16 brushes + FREE box of the other bristle (€29.90) + FREE ebook The Plastic-Free Mouth (€14.90)

€89.90€139.60−36%
€4.50 a brush· ships free

2 boxes

8 brushes

€49.90€69.80−29%
€6.24 a brush· ships free

1 box

4 brushes

€34.90
€8.73 a brush
Shipping extra (free shipping starts at €35)

For €15 more you get a second box… and it ships free.

The free gifts go while stock lasts.
Add-on at checkout: bamboo travel case, +€9.90.

60 DAYS, MONEY BACK ★ 60 DAYS, MONEY BACK ★ 60 DAYS
The URVA 4-box bundle
60 days, money back.

Free shipping from €35 to France, Belgium and Germany. Ships the next business day.

Yes, claim my Black Friday bundle → 4-box: €4.50 a brush · free box + free ebook · 60 days, money back
⚠ Case closed // Verdict: yours

Tonight you'll brush your teeth. The only question is with what.

Every day you wait is another 6,384 particles. Two brushings. One day.

Black Friday ends 30 November. Gifts while stock lasts.

Tonight the old brush goes back on your gums… or in the bin.
Pick the bin and your URVA ships the next business day.

Get the plastic out of my mouth → 4-box: −36% + free box & ebook · ends 30 November

// 4.9/5 from 1,284 reviews // 50,000+ switched // Free shipping from €35 · FR · BE · DE

P.S. Not sure boar suits your gums? The 4-box bundle comes with a free box of horse bristle. Try both. Keep the one your gums like… the other goes to someone in your house. And you have 60 days, money back. Get my 4 boxes + the free box →

Advertorial. Not medical advice. Research on microplastics and health is still developing. Sources are listed in each evidence box.

Comments

Most relevant ▾
Léa Girardok who else just went and looked at their toothbrush👍😮412
LikeReply3 h
Nathalie Duboismine is completely flat 😳 never thought about where that goes👍57
LikeReply2 h
Anke Weberinto us apparently👍😆33
LikeReply2 h
Markus SchneiderMicroplastics are in food, water, clothes. Changing your toothbrush wont change much. Its marketing.👍41
LikeReply1 d
Claire Lambertsure but this is the one you scrub into your gums twice a day. easiest one to cut👍96
LikeReply1 d
Markus SchneiderFair point about the gums. Still think it's pricey.👍18
LikeReply23 h
Sophie Martindoes the boar one feel hard? my gums are really sensitive👍12
LikeReply6 h
Laura Peetersget the horse one, I bleed with everything and its super soft👍29
LikeReply5 h
Sophie MarchandAuthorSophie, take the horse one. It's the soft one.👍14
LikeReply5 h
Pieter JanssensI was using a castor oil brush thinking I was plastic free. it's nylon. great.👍74
LikeReply1 d
Emma Rouxsame. back of the box says polyamide 🙃👍31
LikeReply1 d
Tim Vogelboar was too firm for me the first week tbh. switched to the horse one my sister had, much better👍22
LikeReply2 d
Nina Beckerfunny, I had the same but got used to the boar after like 10 days👍9
LikeReply2 d
Julia Hoffmannhad a few bristles come out the first days, bit annoying. stopped after that👍19
LikeReply4 d
Sebastian Kleingood to know, that was my main worry👍6
LikeReply4 d
Isabelle Fontainebought it for me and now my husband stole one 🙄👍😆88
LikeReply9 h
Marc Fontaineit cleans better. no regrets😆64
LikeReply8 h
Kevin De Smetalmost €35 for toothbrushes is a lot👍15
LikeReply1 d
Marie Lefebvreits 4 brushes tho. a year for one person👍38
LikeReply1 d
Kevin De Smetok fair. still expensive but I'll try the 2 boxes👍11
LikeReply20 h