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Primals

PRIMALS Boar Bristle Electric Toothbrush Replacement Heads (4 Pack)

PRIMALS Boar Bristle Electric Toothbrush Replacement Heads (4 Pack)

Say goodbye to plastic bristle heads, the PRIMALS Electric Toothbrush Replacement Heads:

✅ Fits PRIMALS Electric & Philips Sonicare handles
🪥 Pure boar bristles woven into bamboo
🧬 Eliminates 2.3M microplastics/year
🌱 No toxic glue or synthetic adhesives
💪 Protects hormones, no BPA or nylon
🌿 Supports gut health, zero microplastics

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Key Benefits

  • Eliminates 2.3 million microplastic particles per year from your brushing routine
  • Firm yet gentle natural bristles for a deep, powerful clean that digs into plaque and buildup
  • Protects your hormone health with zero BPA, phthalates, or PFAS
  • Naturally antimicrobial bristles that resist bacteria and mold between uses
  • Zero toxic glue or synthetic adhesives holding your bristles
  • Hand-woven into a bamboo base with nothing artificial touching your mouth

Compatibility

Designed for PRIMALS:
Compatible with the PRIMALS Boar Bristle Electric Toothbrush and PRIMALS Horse Bristle Electric Toothbrush.

Also compatible with all Philips Sonicare click-on handles:
- Protective Clean (4100, 4300, 5100, 5300, 6100, 6500)
- Expert Clean (7300, 7500)
- 9900 Prestige
- Diamond Clean (Smart, Classic, 9000)
- Healthy White / Healthy White+
- Flex Care / Flex Care+ / Flex Care Platinum
- 2 Series Plaque Control / 3 Series Gum Health
- Easy Clean / Daily Clean / Simply Clean
- HydroClean / PowerUp
- Sonicare Kids
- Elite+
- 1100 / 2100 / 3100 Power Toothbrush

Not compatible with:
- Philips One handles
- Philips Screw-on handles
- Non-click-on electric toothbrush handles

How to check: If your current Sonicare brush head clicks onto the metal drive shaft without twisting, your handle is compatible. Also see the image titled "Replacement Head Compatibility" in the product images or the "full list of compatible model numbers" section in the FAQ lower in the product page and cross check it with the model number on the bottom of your Sonicare handle.


If you own any brand or model of electric toothbrushes outside of the ones explicitly mentioned above - we highly recommend that you purchase PRIMALS Boar Bristle Electric Toothbrush or PRIMALS Horse Bristle Electric Toothbrush to ensure compatibility, and for the best microplastic-free and low-EMF sonic brushing experience. Each PRIMALS Electric Toothbrush comes with 2 FREE Replacement Heads.


To inquire about compatibility for any brands or model not mentioned above, please email our 24/7 support team at lauryn@primals.shop or call us at (808) 201-1549 Monday–Sunday, 9AM–5PM EST before purchasing as we are unable to accept returns for purchases made for models we have not explicitly confirmed compatibility with.

PRIMALS is not affiliated with or endorsed by Philips or Philips Sonicare. Compatibility is based on handle design only.

Boar Bristles vs Horse Bristles

The PRIMALS Boar Bristle Replacement Heads are the world's first natural-bristle heads for electric toothbrushes. Two options to choose from:

Boar Bristle Heads - Firm yet gentle natural bristles for a deep, powerful clean. Ideal for anyone who prefers a thorough scrub that digs into plaque and buildup. Naturally antimicrobial so your brush head stays cleaner between uses.

Horse Bristle Heads - The softest natural bristle available. Perfect for sensitive gums, receding gumlines, or anyone who prefers a gentler brushing experience.

Both are 100% natural, plastic-free, glue-free, and antimicrobial. Replace every 1 to 3 months. Available in 4-packs. Subscribe for automatic delivery so you never run out and never go back to plastic.

What's in the Box?

  • 4x Boar Bristle & Bamboo Replacement Heads
  • 1x PRIMALS Replacement Head Guide: For tips to get the best oral care results
  • All of the Free Gifts you earned with your bundle
View full details

Join millions who ditched plastic for good

No more plastic in every brush

My old nylon head was shedding tiny plastic straight into my mouth twice a day. Swapped to the boar head and that part is done.

TREVON M.

Real bristle, zero shedding

Nylon heads wear down and that plastic has to go somewhere. These are actual boar bristles, so there is nothing synthetic to shed.

KENJI A.

Cleaner mouth, no microplastics

Didn't realize how much a worn plastic head sheds until I looked into it. Natural bristle fixed that, and I didn't touch my handle.

ROSALIE P.

No hidden gunk anymore

I cut open an old plastic head once and it was foul inside. This one has no hollow chamber for water to sit in, so it just dries out.

DARIUS H.

Dries out between brushes

My plastic heads always felt damp and stale inside. The bamboo head actually dries, no trapped water, no smell.

ELENA V.

Finally a head that stays clean

Hollow plastic heads breed stuff you can't see or reach. Nothing sits wet in this one, so there is nowhere for mold to grow.

MICAH T.

Clicked right onto my Sonicare

Snapped straight onto my Sonicare handle, no adapter, no wobble. Kept the handle I already had and just lost the plastic head.

BRETT O.

Kept my handle, ditched the plastic

Didn't want to buy a whole new brush. These fit my Sonicare handle perfectly, so I swap the head and I'm set.

NADIA F.

Snug fit, no wobble

Clicks onto my Sonicare exactly like the plastic ones did, same snug fit. The only difference is real bristle instead of nylon.

OSCAR L.

No glue wells trapping gunk

Standard heads staple the tufts into little glue pockets that collect grime. These are hand-woven with no glue, so nothing sits in there.

HANA S.

Bristles that actually stay put

Cheap heads shed bristles once the glue breaks down. Woven without glue, so mine have held tight use after use.

RUSSELL B.

Cleaner build, no adhesive

Liked that there is no glue holding the bristles in. Just bamboo and real boar bristle, nothing to break down over time.

PILAR G.

Teeth feel polished after every brush

The boar bristles are firm enough to actually clean. My teeth feel smooth and polished, like right after a dental visit.

COLE R.

Deeper clean than my nylon head

Firmer than the soft nylon I was using, so it gets everything. The coffee film that used to stick around is just gone.

YUKI N.

Thorough without being harsh

Cleans deep but doesn't feel rough on my gums. Firm boar bristle was exactly the upgrade I wanted on my old handle.

MARISOL D.

Make the switch

Your old plastic head vs your new primals head

Worn electric toothbrush head with frayed blue, white, and green nylon bristles on a black handle.

Old nylon bristle replacement head

Made for shareholders

  • 3,000 microplastics per use
  • Nylon bristles made from petroleum
  • Hollow head that traps water and mold
  • Toxins you never asked for
PRIMALS electric toothbrush head with natural cream-colored boar bristles on a bamboo handle.

PRIMALS Boar Bristle Replacement head

Made for humans

  • Ethically sourced boar bristle, zero microplastics
  • Hand-woven bristles, no glue
  • No hollow chamber for water to sit in
  • Toxin-free, no BPA or phthalates
Microplastics released from a toothbrush
The problem

The hidden cost of brushing

Your plastic brush heads release over 2.3 million microplastics a year

Every brush session releases thousands of invisible plastic particles straight into your mouth. Nylon bristles break down under friction, and the fragments end up somewhere they were never meant to go.

  • Plastic bristles shed with every brush stroke
  • Nylon bristles are made from petroleum
  • That's 3,192 particles per brush session
  • BPA and phthalates hidden inside every bristle
Microplastic particles absorbing through gum tissue
The mechanism

How it gets inside your body

You are not swallowing it. You are absorbing it.

Gum tissue is among the most permeable in your body. Microplastics do not need to be swallowed to reach you. They absorb straight through the gums into your bloodstream.

  • Friction breaks bristles into invisible toxic fragments
  • Gums absorb directly, no swallowing required
  • Gum tissue is among your body's most permeable
  • Particles found in blood, brain and gut
Illustration of microplastic accumulation in the body
The effects

What it does once inside

Microplastics don't leave. They build up and damage.

BPA and phthalates from nylon bristles disrupt hormones, drive inflammation and accumulate in vital organs. Your body has no way to break these compounds down, so exposure compounds over years.

  • Disrupts hormone balance and testosterone levels
  • Triggers chronic inflammation throughout the body
  • Associated with fatigue, brain fog and infertility
  • Linked to gut damage and digestive issues

US VS THEM

Not every replacement head marketed as safe or healthy actually delivers on that promise.

Us vs Them comparison table of PRIMALS, a leading sonic toothbrush, and a castor oil sonic toothbrush. Bristle material:  PRIMALS uses all-natural boar, the leading brush uses petroleum nylon, and the castor oil brush uses plant-based nylon that is still synthetic. Plastic-free bristle: yes for  PRIMALS, no for both others. No microplastics shed: yes for  PRIMALS, while both others shed 2.3 million microplastics per year. BPA, PFAS, and phthalate free: yes for  PRIMALS, no for both others. No hollow plastic head: yes for  PRIMALS, no for both others. EMF emission:  PRIMALS 14 V/m electric and 17.62 µT magnetic, the leading brush 265 V/m electric and 88.29 µT magnetic, the castor oil brush 100 V/m electric and 71 µT magnetic. Clinician-backed:  PRIMALS by 650+ clinicians, the leading brush no, and the castor oil brush unknown.

What people are saying

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PRIMALS Boar Bristle Electric Toothbrush Replacement Heads, 4 pack, shown as a bamboo brush head with natural boar bristles standing beside its green box on moss and white marble.

join the movement

make the switch,
go plastic-free

PRIMALS exists to get plastic out of the one tool you use twice a day. Over a million people have already dropped shedding nylon for pure boar bristle and bamboo heads that fit most click-on handles. Every restock moves fast, so don't wait.

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Frequently Asked Questions

Why Primals?

Worldwide Shipping

Next day shipping from our warehouse in California, USA. Plus free shipping globally for all orders over $100 USD.

Approved by 5000+ Clinicians

5,000+ clinicians from all over the United States share PRIMALS products with their patients.

24/7 Customer Support

Our support team is available 24/7 to handle any questions or concerns. Real humans, not automated bots.

Born In The USA

PRIMALS was founded in Hawaii, USA. Our appreciation for our island state inspired our natural products.

Excellent

Rated 4.9 / 5 Trusted by 1,000,000+ humans

They Felt the Shift. You Will Too.