In this life, there are very few guarantees, but by 2025, we can almost bet our bottom dollar that nearly everyone is using red light therapy. How could you not? Those with acne can testify to the benefits of breakout-fighting light therapy masks. Just as they emit light to treat acne, reduce fine lines and wrinkles, and improve tone and texture, red light therapy devices can also improve hair by stimulating the scalp to encourage growth.
As board-certified dermatologist Dr. Marnie Nussbaum explains, “The red welengths penetrate deep enough to stimulate follicles, extend the growth phase, and reduce inflammation that can lead to excess shedding or thinning. Using red light therapy consistently can help boost hair density, improve scalp health, and support healthier hair growth.” However, red light therapy for hair works best when paired with additional treatments.
“The best approach to treating hair loss is a multimodal approach. I recommend certain supplements, medications, and light therapy devices,” says Dr. Karan Lal, a double board-certified dermatologist. If you want extra reinforcement, you could add things like scalp serums, hair growth oils, and thickening shampoos to your routine, all while treating your scalp to its weekly dose of red light.
Our top picks for the best hair growth devices in 2025
Best LED Mask For Hair GrowthCurrentBody Skin LED Hair Regrowth DeviceRead more
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Best Comb for BeginnersSolaris Laboratories NY Intensive LED Hair Growth BrushRead moreHair loss can happen due to a variety of reasons, so it can be difficult to pinpoint the culprit. Regardless, hair growth devices can help. However, it’s not for the commitment-erse; results take time and consistency, just like your erage skin care product. Still, some people do start seeing results in as little as a few weeks, as the red light increases blood circulation for thicker, healthier hair growth.
Of course, it also involves a hefty investment, and not all hair growth devices are created equal. To help you decide which device is best for you, we consulted trusted dermatologists and sifted through innumerable reviews. Below, you can find not only the eight best hair growth devices on the market but also expert insights on hair loss and what to do about it.