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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. This is how electric oral care should feel:

✅ Compatible with PRIMALS Electric Toothbrush & Philips Sonicare click-on handles

🐗 Pure boar bristles hand-woven into a bamboo head - zero plastic touching your mouth

🧬 Eliminates 2.3 million microplastic particles per year from your brushing routine

🧠 No toxic glue or synthetic adhesives holding your bristles in place

🫀 Protects your hormones - no BPA, phthalates, PFAS, or nylon

🌿 Supports gut health - zero daily microplastic ingestion from brushing

Note: This item is for preorder, and orders containing this item will be shipped by the third week of July. 

Key Benefits

  • Eliminates 2.3 million microplastic particles per year from your brushing routine
  • Firm 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
  • Replaceable with horse bristle heads for a softer, gentler clean

Compatibility

Designed for PRIMALS:
Compatible with the PRIMALS Electric Toothbrush handle.

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, 3 Series, Easy Clean
  • 1100 / 2100 / 3100 Power Toothbrush

Not compatible with:

  • Philips One handles
  • Philips Screw-on handles
  • Other brand handles

How to check: If your current brush head clicks onto the metal drive shaft without twisting, your handle is compatible.

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

Replacement Heads

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 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.

Already own a Sonicare? Our replacement heads are also compatible with all Philips Sonicare click-on handles including Protective Clean, Expert Clean, Diamond Clean, 9900 Prestige, Healthy White, Flex Care, and more. If your current head clicks on without twisting, it fits.

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

What's in the Box?

  • 4x Boar Bristle & Bamboo Replacement Heads

Each head is individually designed to click onto the PRIMALS Electric Toothbrush handle and all compatible Philips Sonicare click-on handles. No adapters needed, just click on and brush.

View full details

Here's your old plastic replacement head...

...versus your new PRIMALS Boar Bristle Replacement Heads

You've got questions. We've got answers.

What's so bad about plastic replacement heads?

Every plastic replacement head on the market uses nylon bristles derived from petroleum. Nylon bristles shed up to 3,000 microplastic particles per use, and those particles absorb directly through your gums into your bloodstream. A 2025 PubMed-backed study confirmed that plastic toothbrushes release up to 2.3 million microplastic particles per year.

Here is the proof: https://www.sciencedirect.com/science/article/pii/S0147651325010395

These plastic heads also contain BPA, phthalates, and PFAS that leach into your mouth with every brush. Under high-frequency sonic vibration, that chemical leaching accelerates even further. You're replacing your brush heads every few months, but every new head is just more plastic, more nylon, and more microplastics against your gums.

What makes PRIMALS Boar Bristle Replacement Heads different?

PRIMALS Boar Bristle Replacement Heads are the world's first natural-bristle replacement heads for electric toothbrushes. Instead of petroleum-based nylon on a plastic base, we use:

  • 100% Pure Boar Hair Bristles
  • 100% Bamboo Head Base
  • 100% Plastic & Nylon Free
  • 100% BPA, Phthalate & PFAS Free
  • 100% Glue Free (bristles are hand-woven, not glued)
  • 100% Naturally Antimicrobial

Compatible with the PRIMALS Electric Toothbrush and all Philips Sonicare click-on handles. Keep your handle, ditch the plastic bristles.

What are the benefits?

  • Eliminates 2.3 million microplastic particles per year from your brushing routine
  • Protects your hormone health with zero BPA, phthalates, or PFAS touching your gums
  • Supports gut health by eliminating daily microplastic ingestion
  • Naturally antimicrobial bristles that resist bacteria and mold between uses
  • Zero toxic glue or synthetic adhesives holding your bristles in place
  • Hand-woven into a bamboo base with nothing artificial touching your mouth
  • Compatible with your existing PRIMALS or Sonicare click-on handle
  • Replaceable with horse bristle heads for a softer, gentler option

What's included in the box?

  • 4x Boar Bristle & Bamboo Replacement Heads

Each head is individually designed to click onto the PRIMALS Electric Toothbrush handle and all compatible Philips Sonicare click-on handles. No adapters needed, just click on and brush.

Can I use horse bristle heads instead of boar?

Yes. Both fit the same handle and click on the same way.

Our Boar Bristle Heads are firm for a deep, powerful clean. Ideal if you prefer a thorough scrub that digs into plaque and buildup.

Our Horse Bristle Heads are 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. Simply a matter of whether you prefer firmer or softer bristles.

What handles are compatible?

Designed for PRIMALS:
Compatible with the PRIMALS Electric Toothbrush handle.

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, 3 Series, Easy Clean
  • 1100 / 2100 / 3100 Power Toothbrush

Not compatible with:

  • Philips One handles
  • Philips Screw-on handles
  • Other brand handles

How to check: If your current brush head clicks onto the metal drive shaft without twisting, your handle is compatible.

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

How often should I replace the brush head?

We recommend replacing your brush head every 1 to 3 months for optimal hygiene, or sooner if:

  • Bristles appear frayed, bent, or worn
  • Bristles are no longer firm
  • You notice reduced cleaning effectiveness
  • Bristle loss or split bristle bundles appear

Subscribe for automatic delivery on your schedule so you always have fresh natural bristle heads right to your door.

Some tips to note!

  • In your first few uses, a small number of bristles may naturally shed as the bamboo adjusts to your local humidity. This is completely normal and typically stops after 1 to 2 weeks of regular use. If excessive shedding occurs, contact us at lauryn@primals.shop.
  • Leave a 0.5 to 1mm gap between the brush head and handle for proper vibration transfer. Do not force the head flush against the handle.
  • Stand your toothbrush upright after each use for optimal drying to maximize the lifespan of each head.
  • Run the bristles under warm water before use to soften them slightly.
  • If bristles are flattening quickly, you may be brushing with too much force. Use lighter pressure and circular motions.
  • Replace every 1 to 3 months for optimal hygiene. Subscribe for automatic delivery so you never go back to plastic.
  • For a softer brushing experience, try our Horse Bristle Replacement Heads.

A HIDDEN THREAT IN YOUR DAILY HABIT

Your Plastic Brush Heads Are Feeding You 2.3 Million Microplastics Per Year

A PubMed-backed study confirmed that plastic bristle heads release 2.3 million microplastic particles per year, roughly 3,192 particles every time you brush. Under high-frequency sonic vibration, that shedding accelerates even further. These particles are invisible, highly toxic, and absorbing through your gums into your bloodstream twice a day.

YOU'RE NOT JUST BRUSHING, YOU'RE ABSORBING PLASTIC

Plastic Bristle Heads Break Down Faster Under Sonic Vibration

At 30,000+ strokes per minute, nylon bristles degrade rapidly, releasing tiny shards laced with BPA and phthalates. These fragments absorb through your gums, which are 10x more permeable than skin, and enter your bloodstream directly. Every plastic replacement head is a microplastic delivery system working against your health every morning and night.

A GROWING HEALTH CONCERN, BACKED BY RESEARCH

Microplastics Fuel Inflammation and Systemic Harm

Once inside, microplastics don't pass through. They accumulate, triggering oxidative stress, weakening your immune system, and disrupting your gut and hormone balance. Research links long-term exposure to chronic inflammation, fatigue, and infertility. All from brushing your teeth with plastic bristle heads twice a day.

A RESEARCH-BACKED, PURPOSE-BUILT SOLUTION

Built Without Plastic Bristles. Engineered for Your Health.

The world's first natural-bristle replacement heads for electric toothbrushes. Hand-woven into a bamboo base with zero synthetic adhesives. Zero plastic bristles, zero toxic glue, zero microplastic shedding. Completely free from BPA, phthalates, and PFAS. Compatible with PRIMALS Electric Toothbrush and all Sonicare click-on handles. No compromises.

Why Primals?

  • Worldwide Shipping

    We can't wait for you to try our products - so we make sure to ship your orders at lightning speed! Not to mention we ship worldwide and shipping is FREE for all US orders over $100!

  • Toxin Free

    We only use premium, organic materials to craft our products - to help you truly live toxin free. Because when it comes to our health, we refuse to ever cut corners.

  • Earth Friendly

    Our products are crafted and packaged intentionally to minimize our impact on our planet. Because we believe in leaving everything better off than we found it.

  • Born In The USA

    PRIMALS was founded in Hawaii, USA where all of our products are designed. Our appreciation for the natural beauty of our island state inspired the creation of our eco-friendly products.

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