Particles A Year, From One Brush
That is the figure researchers associate with brushing on plastic bristles. Twice a day, every day, for as long as you have had teeth.
Figure drawn from published microplastics research on plastic oral-care products.




Every morning, you clean your teeth with a piece of petroleum. The bristles are nylon, the handle is plastic, and both shed while you scrub. This is the same two minutes, without any of that — and it is the softest brush we make.
Clinicians' Choice
None of them were paid to. Verified independently by frontrowMD.
Read This Before Your Next Brush
Nobody sets out to eat their toothbrush. But nylon is a plastic, and plastic abrades — inside your mouth, against the most absorbent tissue you own.
That is the figure researchers associate with brushing on plastic bristles. Twice a day, every day, for as long as you have had teeth.
Figure drawn from published microplastics research on plastic oral-care products.BPA, phthalates, and PFAS are all documented in conventional nylon brush heads — and most brushes bond their tufts with synthetic adhesive.
Refers to materials commonly used in conventional nylon toothbrushes.US alone. Every plastic toothbrush ever made still exists somewhere. Yours will outlive you by roughly four centuries.
US annual toothbrush waste estimate.Side By Side
| PRIMALS Horse Bristle | Standard Plastic Brush | |
|---|---|---|
| Bristles | Real horse hair, soft | Petroleum-based nylon |
| Handle | Single-piece bamboo | Moulded plastic |
| Bristle attachment | Woven, no glue | Synthetic adhesive |
| Microplastic shedding | None — no plastic present | Sheds while you brush |
| BPA / phthalates / PFAS | Free of all three | Commonly present |
| Bacterial build-up | Naturally antimicrobial bristles | Damp synthetic tufts harbour bacteria |
| Drying | Sealed base, stands upright | Lies flat, stays damp |
| End of life | Fully biodegradable | ~400 years in landfill |
Comparison reflects typical mainstream plastic toothbrush construction. Specifications vary by model and manufacturer.
Who It's For
You swapped the non-stick. You read the skincare labels. This is the one still sitting in your bathroom, used twice a day, unexamined.
Why People Don't Go Back
I was worried horse bristles would be rough. They are the opposite — noticeably gentler than the nylon brush I replaced, and my gums stopped feeling raw after brushing.
I have tried probably eight different bamboo toothbrushes in the past year. Every one either went mouldy on the handle within a fortnight or had nylon bristles, which defeats the entire point. These stay dry and they are actually natural.
They were constantly tender with a plastic brush and I assumed that was my technique. Turns out it was the bristles. Two weeks on these and the difference is not subtle.
No complaints about the brush — firm enough to clean, soft on the gumline, and the sealed base does stop the wicking you get with cheap bamboo. Four stars because you do have to stand it upright; lay it flat in a wet dish and you will undo the design.
I had been buying bamboo-handled brushes for months without checking the bristles. Nylon, every one. These are the first genuinely plastic-free brushes I have owned.
Quality is there and I will keep buying them. Only note is that a four-pack is a year of brushes for one person, so store the spares somewhere dry rather than in the bathroom.
Before You Ask
Yes — more so than nylon, in fact. Horse bristles are a natural protein fibre and are naturally antimicrobial, so they don't harbour bacteria the way a damp synthetic tuft does. The bristles are cleaned and heat-treated during manufacturing. Rinse and stand the brush upright to dry, exactly as you would with any brush.
It is ethically sourced — collected from the mane and tail, which regrow, in the same way wool is shorn. No animal is harmed to make these brushes.
It is the softest brush we make, and that is the point — but soft is not the same as ineffective. Dentists have been recommending soft bristles over hard ones for years, because pressure and technique do the cleaning, not bristle stiffness. If you want a firmer feel, our boar bristle version is the one to pick.
Choose horse if your gums are sensitive, if they bleed when you brush, if your gumline is receding, or if you are pregnant and finding your gums more tender than usual. Choose boar if you want the firmest natural clean available.
That is the single most common complaint about bamboo brushes, and it is why this one is built differently. The handle is one solid piece of bamboo sealed with a non-toxic coating on the base, so it dries quickly instead of wicking water. It also stands upright on its own, which keeps the head out of standing water.
They are woven directly into the bamboo. Most brushes — including most “eco” bamboo ones — bond their tufts with synthetic adhesive that sits millimetres from your gums. There is no glue anywhere in this brush.
The handle and the bristles are, yes — bamboo and natural hair both break down. Compost the handle or use it as a plant marker. That is the whole product; there is no plastic component to separate out.
One to three months, the same as any brush. A 4-pack covers roughly a year for one person, or three months for a family of four, which is why it is the format we sell.
Same philosophy, different job. The electric handle gives you 62,000 VPM and five modes; this is the manual, and it is softer. Plenty of people keep the electric for the morning and one of these by the sink for travel or evenings.
Email [support@yourdomain.com] and a real person — not an autoresponder — replies the same business day. See our refund policy for the current returns window.
Covered
Every claim on this page is about what the brush is made of — horse hair, bamboo, and nothing else. If what turns up doesn't match that, email us and a person sorts it out the same day.
Stay In The Loop
Boar or horse? How often to swap? We'll send the one-page guide, plus early access when new bundles and colours drop.
No spam. Unsubscribe any time.