Three options, one material. The only real question is how you like to brush. Because the material is the part that matters. A 2025 PubMed-backed study confirmed plastic toothbrushes release up to 2.3 million microplastic particles per year, roughly 3,192 particles entering the mouth every single brush. Here's the mechanism: nylon bristles are spun from petroleum, and friction wears them down with every stroke, breaking off fragments too small to see or feel. Gum tissue is roughly 10x more permeable than skin, so those fragments absorb into the bloodstream rather than rinsing away, carrying BPA and phthalates with them. Nylon is also coarser than natural bristle, which is why firm brushing with it is linked to enamel wear and gum recession. Every one of these three uses real animal bristle instead, so none of that happens regardless of which you pick. What usually stalls the switch is not the argument, it is not knowing which version suits you. People buy a natural brush once, choose the wrong firmness, find it too rough or too soft, and quietly go back to plastic three weeks later. Or they assume going natural means giving up their electric entirely, so they never start. So here is the honest breakdown. Hundreds of clinicians share PRIMALS with their patients. ✅ Adult Boar, firm natural bristles for a deep, satisfying scrub after a long day of eating and drinking ✅ Adult Horse, the softest natural bristle available, fine and flexible, made for sensitive gums and thin enamel ✅ Boar Sonic Electric, 62,000 VPM with natural bristle heads and a low-EMF engineered motor, for anyone who will not give up their electric ✅ Zero microplastic shedding on all three, whichever you choose ✅ Woven glue-free into bamboo, unlike "eco" brushes that glue nylon into a bamboo handle ✅ Zero BPA, phthalates, or PFAS touching your gums ✅ The manual handles are free-standing and sealed, so they dry fast and never mold ✅ Both bristle types are available as replacement heads for the electric, so you can switch feel any time Most bamboo brushes come in one firmness with nylon bristles glued on. This is the only lineup where every option uses real natural bristle, manual or sonic. 🤝 Manual brushes ship as 4-packs, up to a year of brushing at the 2 to 3 month swap 🤝 FREE next day shipping on US orders $100+ 🤝 Mix and match across the lineup in a single order We ship from California, so US orders arrive fast. Two brushes a day, roughly 730 a year. That count only moves in one direction while the plastic one stays in the cup. 100,000+ people have already made the switch to PRIMALS. Pick the one that suits how you actually brush, and the switch sticks. Click "Shop now" and find the one that fits you!
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