This toothbrush uses phototherapy to brighten your smile

Grab Bristl at 24 percent off MSRP.

Even if you brush and floss every day, you can find a little plaque starting to form on your teeth. This only takes the white off your smile, but it can also lead to tooth decay and gum disease. Thanks to some smart science, the Bristl Phototherapy Electric Toothbrush helps you blast plaque away and improve your gum health. You can grab it now for $74.99 at the PopSci Shop.

Phototherapy is used widely in hospitals to fight off bacterial infections. But now, the technology has been minimized to fit inside an electric toothbrush.

Using powerful LEDs in the brush head, Bristl emits blue light to kill bacteria and whiten your teeth. This allows you to remove plaque from hard-to-reach crevices without visiting your dentist. Bristl can also emit red light, which helps to soothe and repairs your gums.

Aside from the phototherapy, this toothbrush does a great job of keeping your gnashers clean. The rotating brush head has two modes — gentle (12,000 rpm) and strong (24,000 rpm) — and the battery lasts for three weeks on three brushes each day. Bristl even switches off to prevent over-brushing.

It’s normally $99, but you can get next-gen toothbrush now for $74.99.