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5 Reasons Moms Are Switching to the PRIMALS Boar Bristle & Bamboo Toothbrush
Every plastic toothbrush in your house sheds 3,000+ microplastic particles every use directly into your family's bodies. Twice a day.
PRIMALS is the only toothbrush that is 100% plastic-free from handle to bristle. Natural boar hair bristles. Sustainable bamboo handle. Zero microplastics. Zero synthetics.
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"I check every ingredient in our food. I never once thought to check our toothbrushes."
Every Plastic Toothbrush in Your House Sheds 3,000+ Microplastic Particles Every Single Use
A 2025 peer-reviewed study found that plastic toothbrushes release over 3,000 microplastic particles per brushing session. That is 2.3 million fragments per person, per year. Multiply that by every person in your house.
63% of those particles are smaller than 100 micrometers, small enough to pass directly through gum tissue into the bloodstream. Your gums absorb compounds 10x faster than skin. And a separate 2024 study found 89% of human blood samples now contain detectable microplastics.
Microplastics Have Been Found in Placenta, Breast Milk, and Children's Tonsils
This is not a future risk. Microplastics have already been found embedded deep within pediatric tonsil tissue, in human placenta, and in breast milk. A 2025 Stanford study confirmed these particles are accumulating inside children's bodies right now.
A 2025 Lancet study warned that children face an urgent threat from plastic chemicals affecting birth outcomes, metabolic conditions, and neurodevelopment. Children's cells divide faster. Their blood-brain barrier is more permeable. Their bodies absorb and retain more plastic per pound of body weight than adults.
Up to 70% of Soft Plastic Is Leachable Chemicals That Enter Your Family's Bodies
Scientists warn: up to 70% of soft plastic by weight is chemicals that leach directly into saliva. Plasticizers, BPA, phthalates, and other additives leach out every time the bristles press against warm, wet gum tissue. These chemicals mimic estrogen and disrupt hormonal balance.
Where do they end up? A 2024 Nature Medicine study found human brain tissue now contains 0.5% plastic by weight, up 50% in just 8 years. Dementia brains contain up to 10x more plastic. A separate NEJM study found 58% of surgery patients had microplastics in their arteries, with a 4.5x higher risk of heart attack, stroke, or death.
100,000+ families have already made the switch. You protect everything else. This is the one thing you missed.
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Other "Bamboo" Toothbrush Bristles Are Up to 90% Nylon
You already tried to fix this. You bought the "bamboo" toothbrush because it looked safer. But an independent investigation found "bamboo fiber" bristles contain up to 90% nylon with just a fraction of actual bamboo powder. Lab tests on "The Environmental Toothbrush" revealed bristles claimed to be biodegradable Nylon-4 were actually Nylon-6, which is not biodegradable.
Even castor oil "bioplastic" bristles still shed microplastic particles. "Bamboo charcoal" bristles? Up to 90% nylon with a pinch of charcoal powder. "BPA-free" does not mean plastic-free. The bristles are the problem. Not the handle.
You Can't Control Everything. But You Can Control Your Family's Toothbrushes.
You cannot control the air they breathe or the water they drink at school. You cannot control the plastic in their cafeteria trays or the chemicals in the gym floor. You have already accepted you cannot protect them from everything.
But the toothbrushes in your bathroom? Those are still your call. Everyone in the house uses one, twice a day, 365 days a year. One order stops 2.3 million microplastic particles per person, per year from entering your family's bodies. That is the single highest-impact swap you can make.
Independent Clinician Evaluations
Clinicians receive product samples and are never compensated to submit evaluations.
I love the Boar Bristle & Bamboo Toothbrush because the bristles are composed entirely of animal fibers. That means they are made without plastic like many toothbrushes you would find at the store. Research in Environmental Pollution found that standard plastic toothbrushes can and often do shed microscopic particles or "microplastics." Over years of brushing, those microplastics can quickly accumulate, so I encourage patients to explore plastic-free alternatives like this one from PRIMALS. It's great that the boar bristles can be effective for cleaning the teeth and protecting the enamel as well. There is a lot that I like about this product, and I would happily recommend it as part of an oral care routine.
I highly recommend the PRIMALS toothbrush to patients whose gums may be irritated by stiff nylon bristles. A review of research found that hard-bristle toothbrushes can cause more gum abrasions than softer options, suggesting that soft and extra-soft brushes tend to be safer choices for most people. I expect many patients may notice that the boar bristles on this toothbrush feel noticeably softer and more flexible than standard nylon. This can offer a gentler brushing experience for sensitive gums. I appreciate the boar bristles are woven directly into the head, avoiding the use of glue or adhesives that may become triggers of irritation. After reading the research, I feel good about this product as a comfortable, low-chemical option for everyday brushing.
The Only Toothbrush That's 100% Plastic-Free
Handle and bristle. Every component. Nothing synthetic.
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Real Families. Real Results.
⚠️ Every brush with plastic adds to your family's load
You Protect Everything Else. Now Protect This.
You cannot control what they eat at school or drink from fountains. But you can control what enters their bodies twice a day at home. One swap. 2.3 million fewer particles per person, per year.
Protect Your Family NowMom FAQs
Plastic bristles release 3,000+ microplastic particles per session. 63% are smaller than 100 micrometers, passing through gum tissue (10x more absorptive than skin) into the bloodstream. 89% of human blood samples now contain detectable microplastics. Once inside, they accumulate in the brain, arteries, and organs permanently. (PMID: 40680448; Nature Scientific Reports, 2024)
Yes. A 2025 Stanford study found microplastics embedded deep within pediatric tonsil tissue. They have also been detected in human placenta and breast milk. The Lancet (2025) warned that children face urgent threats from plastic chemicals affecting neurodevelopment, metabolic conditions, and birth outcomes.
Independent lab tests found that "bamboo fiber" bristles contain up to 90% nylon. One brand claiming biodegradable Nylon-4 was actually Nylon-6, which is not biodegradable. Even castor oil "bioplastic" bristles still shed microplastics. PRIMALS is 100% natural from handle to bristle.
Yes. Boar bristles are natural keratin with a texture that grips plaque effectively. Most users report a "squeaky clean" or "polished" feeling. They deliver a thorough deep clean without synthetic materials.
2-3 months per toothbrush. One 4-pack covers one person for a full year. Unlike plastic bristles that shed more microplastics as they wear, boar bristles maintain effectiveness throughout their lifespan.
PRIMALS Boar Bristle is great for teens and adults. For younger children with sensitive gums, we recommend the PRIMALS Horse Bristle Toothbrush (ultra-soft). Both are 100% plastic-free.
Each 4-pack covers one person for a year (replace every 3 months). For a family of four, grab three 4-packs and the whole house is covered.
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