A 60-SECOND READ

You Think About What Goes Into Your Body. But Have You Ever Checked Your Toothbrush?

Most conventional toothbrush bristles are made from synthetic polymers such as nylon. Researchers are now studying what happens to those materials as we brush every day.
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No scare tactics. Just the research and the reason we switched.
WHAT HAPPENS AS YOUR BRUSH WEARS?

Your Toothbrush Bristles Don't Stay New Forever.

Conventional toothbrush bristles are commonly made from synthetic polymers such as nylon. Every morning and night, those bristles are repeatedly bent, rubbed, and worn against the teeth.

Researchers have started measuring what can come off those materials during brushing.

2025 STUDY

Researchers Detected Microplastic Release From Commercial Toothbrushes During Simulated Brushing.

UP TO 39
MICROPLASTIC PARTICLES / DAY
Highest average reported among the toothbrushes tested under the study's simulated-brushing conditions.
01
All Tested Brushes Released Particles
Researchers found microplastic particles released from every commercial toothbrush tested in the laboratory simulation.
02
Bristles Were a Major Source
The study reported bristle fragmentation and identified synthetic polymers including nylon and PBT among the materials involved.
03
The Particles Varied in Size
Detected particles ranged from approximately 8 to 1,995 micrometers under the study conditions.
3D Dental Arch
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Twice-Daily Simulated Brushing
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7 Days
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Particles Analyzed
Researchers used microscopy, FTIR and micro-Raman spectroscopy to characterize released particles.
Microchemical Journal • Volume 216 • 2025
Study: "Preliminary results on microplastic release from commercial toothbrushes during simulated brushing"
So why does this matter?
Finding microplastic release is one thing. Understanding what microplastic exposure may mean for the human body is a much bigger question.
NEXT: WHAT RESEARCHERS ARE STUDYING ABOUT MICROPLASTICS ↓
THE BIGGER QUESTION

What Are Scientists Finding About Microplastics in the Human Body?

Microplastics are not only an environmental issue. Researchers have detected them in human biological samples and are actively studying how exposure may interact with inflammation, oxidative stress, hormones, the cardiovascular system, reproductive tissues, and the gut.
The science is developing — but there is enough evidence to keep researchers paying attention.
MICROPLASTICS HAVE BEEN DETECTED IN HUMAN SAMPLES
BLOOD
PLACENTAL TISSUE
GASTROINTESTINAL SAMPLES
REPRODUCTIVE TISSUES
CARDIOVASCULAR TISSUES
Detection does not automatically mean harm. Researchers are studying what the presence and concentration of these particles may mean for human health.
AREA OF RESEARCH 01

INFLAMMATION & OXIDATIVE STRESS

Human-focused reviews have repeatedly reported associations between microplastic exposure and biomarkers related to inflammation and oxidative stress. Researchers commonly examine markers such as CRP, IL-6, TNF-α, 8-OHdG and MDA when studying these relationships.
HUMAN ASSOCIATIONS REPORTED
Association does not prove that microplastics caused the biological changes.
AREA OF RESEARCH 02

HORMONES & ENDOCRINE SIGNALING

Human studies have reported associations between microplastic exposure and changes in endocrine-related biomarkers, including thyroid hormones and cortisol. Researchers are still working to determine whether microplastics directly cause these changes and what they may mean over long periods of exposure.
EMERGING HUMAN EVIDENCE
Causation and long-term clinical significance remain uncertain.
AREA OF RESEARCH 03

CARDIOVASCULAR RESEARCH

Micro- and nanoplastics have been detected in cardiovascular tissues, and researchers are investigating whether higher particle burdens are associated with cardiovascular inflammation and adverse outcomes. Current systematic reviews describe this as an emerging area of human research rather than settled proof of causation.
ACTIVE RESEARCH AREA
Not toothbrush-specific. Causal relationships are still being investigated.
AREA OF RESEARCH 04

REPRODUCTIVE HEALTH

Microplastics have been detected in human reproductive tissues, including placenta, semen, testes and ovarian-related samples. Researchers are investigating possible relationships with oxidative stress, inflammation, endocrine signaling and reproductive function.
DETECTED + UNDER INVESTIGATION
Detection does not prove harm. Research is ongoing.
OUR TAKEAWAY

You Use a Toothbrush Twice a Day. We Wanted One Made Differently.

We can't control every source of synthetic material or microplastic exposure.

But once we learned more about conventional toothbrush bristles, we realized this was one everyday product we could simply choose differently.

Same routine. Different materials.
MEET CURRENT

Bamboo Handle. Natural Boar Bristles. No Nylon Bristles.

Bamboo Toothbrush 4-PACK - CURRENT

CURRENT is a 4-pack of bamboo toothbrushes made with natural boar bristles for people looking for an alternative to conventional nylon-bristle brushes.

CONVENTIONAL
  • Plastic handle commonly used
  • Synthetic nylon bristles commonly used
CURRENT
  • Bamboo handle
  • Natural boar bristles
  • No nylon bristles
  • 4 brushes per box

No miracle claims.
No complicated new routine.
Just a different material choice.

CURRENT Bamboo & Boar Bristle Toothbrushes
$20.99
4 toothbrushes • About $5.25 per brush
4 brushes per box • Secure checkout

Add your shipping and return policy information here.

Natural boar bristles are animal-derived and are not vegan.
You already brush morning and night. The switch takes nothing extra.
RESEARCH & SOURCES