In the age of coronavirus, we all have to resist the urge to touch our faces. It’s how the virus can travel from doorknobs or other objects to your mucus membranes and get you sick. Luckily, a startup called Slightly Robot had already developed a wristband to stop another type of harmful touching — trichotillomania, a disorder that compels people to pull out their hair.

So over the last week, Slightly Robot redesigned their wearable as the Immutouch[1], a wristband that vibrates if you touch your face. Its accelerometer senses your hand movement 10 times per second. Based on calibrations the Immutouch takes when you set it up, it then buzzes when you touch or come close to touching your eyes, nose, or mouth. A companion app helps you track your progress as you try to keep your dirty mitts down.

The goal is to develop a Pavlovian response whereby when you get the urge to touch your face, you don’t in order to avoid the buzzing sensation. Your brain internalizes the negative feedback of the vibration, training you with aversive conditioning to ignore the desire to scratch yourself.

“A problem the size of COVID-19 requires everyone to do their part, large or small,” says Slightly Robot co-founder Matthew Toles. “The three of us happened to be uniquely well equipped to tackle this one task and felt it was our duty to at least try.”

The Immutouch wristbands go on sale today for $50 each[2] and they’re ready for immediate shipping. You can wear it on your dominant hand that you’re more likely to touch your face with, or get one for each arm to maximize the deterrent.

“We’re not looking to make money on this. We...

Read more from our friends at TechCrunch