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Why Grin Toothbrush?


A recent study from the Harvard Medical school shows that using a clean toothbrush that’s in good condition can reduce your chances of developing heart disease, dementia and diabetes.

These studies underline what dentists have been telling us for years: it’s critical that we replace our toothbrush at least every three months. Unfortunately, we all live busy lives and so we often forget to buy a new toothbrush. 

With that in mind, we set out to design a better toothbrush. In the end we re-invented oral care.

Grin is a smarter toothbrush delivered to your door with friendly, brush head replacement reminders. 

Photo of Blue, Lime and Rosy Grin Toothbrush

The Smarter Toothbrush

Drugstore toothbrushes collect germs and roll over when you put them down (bristles, meet dirty bathroom counter). Plus, disposing of the handle is wasteful.

Grin is the toothbrush of the future, a sleek, aluminum handle that you keep and replaceable brush heads that you replace when we remind you.

Our Handle

Our handle is both beautiful and functional. It’s made of aircraft grade, anodized aluminum which is safe, durable and corrosion resistant. The sleek surface doesn’t collect germs and lays flat when you put it down, keeping your bristles away from any potentially dirty surfaces.

Superior Brush Heads

The replaceable toothbrush heads use special soft, tapered Nylon that penetrates up to 17% deeper between your teeth and gums for a superior clean that can help prevent gum disease.

Plus, our recyclable* toothbrush heads use ~85% less plastic than drugstore brands.

Billions of toothbrushes are disposed of each year, ending up in landfill or other natural environments. In fact, plastic is now becoming an extreme hazard to our oceans and our health.


Oral Care on Autopilot

Grin makes using a fresh, clean toothbrush automatic. We mail fresh brush heads to you and remind you when they need to be replaced.

Drop your toothbrush? Catch a cold or flu? With Grin you have replacement brush heads on hand so you don’t have to run to the drugstore at 10 p.m.

Forget how old your toothbrush is? We send you reminders to replace your brush head on time. 

Simplify your life: sign up for a Grin toothbrush subscription and we automatically send you new brush heads every year.  

You can’t put a price on peace of mind – and, at less than $3 a brush, the decision is easy. So what are you waiting for?

See our Products


* to recycle your brush head you must first remove the bristles. We’re working on it!