LED masks are conquering haircare too Do they really work?

LED masks have become a staple in many people's skincare routines, and given all the benefits attributed to red light, it was only a matter of time before they made their way onto the scalp, too. The promise is to stimulate hair growth and help fight thinning. But do they actually work, or are they just another beauty gadget we're willing to spend our money on?

LED masks are making their way into haircare, too

How do they work?

The technology is called photobiomodulation and uses specific wavelengths of light to influence certain cellular processes. The goal is to stimulate follicle activity, promote hair growth, improve hair density and strengthen the hair shaft. Red light is the most commonly used, and some devices on the market also feature a built-in massager designed to combine light therapy with scalp stimulation. They also promise a pretty great moment of relaxation, especially since each session lasts just 10 minutes.

The verdict: do they actually work?

I haven't personally tried what sounds like a pretty incredible invention yet, so to find out whether it actually works, we're turning to our beloved scientific studies. The most interesting research focuses on androgenetic alopecia, a form of hair thinning linked to genetic predisposition and the sensitivity of hair follicles to androgens. In 2025, a study published on PubMed compared the findings of 38 studies involving 3,098 patients, reporting a significant increase in hair density with low-level light or laser devices. The results are promising, there's no denying that, but they don't mean that every LED mask on the market works in the same way. The devices tested have specific technical characteristics, and these findings cannot automatically be applied to every model. The cause of hair loss also matters. If your hair loss is linked to stress, nutritional deficiencies or other underlying issues, red light might not be the answer. Before buying a mask, it's important to understand what's causing the problem and ask a dermatologist whether this type of treatment could help.

How long does it take to see results?

Now that we've established there's a good chance these masks can actually work, the next question is how long it takes to see the first results. As you can probably imagine, one week of use won't turn you into the live-action version of Rapunzel. It generally takes at least three months to notice the first changes, and six months or longer to assess any improvements in hair density. Consistency is essential, as is following the brand's instructions. If you were thinking of making each session longer to speed things up, don't bother. Keeping the mask on for longer doesn't mean you'll stimulate your follicles more or make your hair grow faster. Stick to the recommended treatment times and be patient.