In general, LED masks are safe. There are exceptions to this rule, though. Be sure to follow these tips before trying one.
Do Your Research
Be sure that the mask you choose is safe. One popular LED mask made by Neutrogena was recalled over concerns of a “theoretical risk of eye injury” from the lights for some people who have eye conditions or take certain medication, per the company’s statement. Wearing eye protection when using an LED device is good advice for anyone, says Farber.
Solomon advises making sure that the LED light therapy device you buy is labeled as cleared by the U.S. Food & Drug Administration.
The Effects of Blue Light Are Murky
Some experts are also wary of blue light exposure. Research on mice suggested that blue light can cause free radical damage, which breaks down skin’s structures and leads to aging, but that other colors of light, such as red and green, did not. It’s unclear if the results are the same in humans; further research is needed.
There’s also concern about the effects of blue light on eyes, but one research review says data hasn’t shown that average use of LEDs (via smartphones, computers, and tablets — research on masks is lacking) causes damage to retinas. The authors noted, however, that there’s a lack of information on the potential harm of long-term cumulative exposure, or at what dose.
“There are questions about whether or not people should be using blue light or if it can be damaging to skin. I think that’s something we need more information on,” says Farber. Whether LED devices for acne have more negatives than positives remains to be seen. With that in mind, you may choose to hold off on the blue light treatment for now.
Talk to Your Dermatologist — Especially if You Have a Skin Condition
One study of 30 people with mild psoriasis showed that at-home treatment using a UV-free blue LED device was “safe and highly effective.” Similarly, previous research found that blue LED light helped lessen eczema lesions. And a research review noted they’re generally safe for most people with skin conditions like eczema, rosacea, and psoriasis, though research on safety in the long term is needed.
The best course is to visit your dermatologist first — bring in your face mask and talk about the best way to use it for your skin’s goals (timing, dose), which will help reduce the risk of side effects, says Solomon.
LED light mask therapy may be beneficial for collagen production and killing the bacteria that cause acne breakouts, but they don’t replace your regular skin-care routine. As at-home devices, they may be less effective than in-office procedures at your dermatologist’s office. Take proper precautions before using them, including wearing eye protection and following directions, in order to stay safe while treating your skin.
