When Colgate was developing its new low-waste Keep toothbrush, which has a reusable aluminum handle and replaceable heads (a starter pack costs $9.99; additional heads are $4.99 for two), the company ...

Our landfills are a graveyard for old, plastic toothbrushes. Last year, 495 million nonelectric toothbrushes were purchased in the U.S. They’re not recyclable, which means the vast majority get tossed ...

Katherine Martinko is an expert in sustainable living. She holds a degree in English Literature and History from the University of Toronto. Haley Mast is a freelance writer, fact-checker, and small ...

Smart toothbrushes have been around for a few years now, but they haven’t quite caught on. Sure, they promise better habits via connected sensors, but they also tend to be very expensive ($100 and up) ...

Everything that uses electricity is getting smart — or eventually will. We've had electric toothbrushes for some time now. But now, those toothbrushes are finally getting smart functionality. One of ...