Credit: Miller Kern / Mashable No one is seriously questioning whether red light therapy works at this point. The professional skincare community and dermatologists largely agree on its effectiveness.

A new way of treating these ulcers could brighten the future, however: light-emitting diodes (LEDs) tuned to the red end of the spectrum and placed into a patient’s mouth improve symptoms in more than 40% of cases.

The NuFace microcurrent device is popular with Strategist editors and writers, and this one comes with a red-light attachment. It visibly tones 69 muscles in the face and neck and smoothes fine lines and wrinkles. The device is usually close to $500 but is now 30 percent off.

From futuristic-looking masks to crimson-glowing bedside lamps, red light therapy is taking over social media feeds with a range of wellness promises. Many creators promote red light exposure as part of their wind-down routine, wedged between sleepy girl ...

At first glance, a red light flashlight doesn't seem very practical — but there's a clever reason people rely on it instead of a standard torch.

There are plenty of deals still left at the 2026 Nordstrom Anniversary Sale, but one of the best might be this skincare product. The best-rated TheraFace Glo-LED Skincare Mask from Therabody is finally on sale at a huge discount.