The biggest drawback has always been the price. There are cheaper LED caps and helmets out there, but Prime Day knocks 10 percent off the price, saving you about $90. That’s still an investment, but it’s easier to swallow if you’ve been eyeing it.

An All-in-One Facial Device

Photograph: Molly Higgins

Laduora

Lumeo 4-in-1 SkinLift Beauty Device + Serum Kit

If you’re looking for a facial device that does a little bit of everything, the Lumeo SkinLift 4D Current Red Light Therapy Kit is worth a look. It’s a 4-in-1 product that combines red and near-infrared light therapy, microcurrent stimulation, low-intensity electroporation for deeper serum absorption, and massage therapy in a single tool. After two months of testing, WIRED reviewer Molly Higgins noticed her skin looked smoother, brighter, and more radiant overall. While multipurpose facial devices can sometimes feel like they’re doing too much, this one delivers a genuinely beneficial experience. The discount helps, too.

Best LED Hairbrush

Like the Lumeo facial device, the Laduora Duo takes a multitasking approach, but for hair growth. The brush-like device combines red and near-infrared light therapy, microcurrent stimulation, sonic vibration, and thermotherapy into a single tool that’s easy to work into a daily routine. It also uses serum-filled pods designed to support cell renewal and scalp health. The catch is that you’ll need to buy replacement pods directly from Laduora if you want to keep using them. But the good news is that the device still works without the serums.