Red Light Therapy for Hair Growth: Expert Insights and Top Device Picks

Beauty enthusiasts have wholeheartedly embraced the red light trend, with LED masks becoming a staple in skincare routines for addressing wrinkles, collagen loss, and acne. Now, attention is shifting to hair and scalp care, as many claim red light therapy can help combat hair loss—a revelation that could have aided those experiencing severe postpartum shedding or other forms of hair thinning.

What Experts Say About Red Light Therapy for Hair

In previous discussions, dermatologists have weighed in on the potential of red-light devices. Dr. Kimberly S. Salkey, a board-certified dermatologist and residency program director at VCU School of Medicine’s Department of Dermatology, explained that several theories support this idea. "One theory suggests [red light therapy] impacts mitochondria inside hair follicles, ultimately leading to increased cellular energy and protein production. Another theory proposes that it triggers dilation of blood vessels leading to improved blood flow and decreased inflammation," she said.

While these theories are promising, Dr. Hadley King, a New York-based board-certified dermatologist and clinical instructor at Weill Medical College of Cornell University, noted that although some studies indicate red light may help restore hair in cases of hair loss, larger and more comprehensive studies are still necessary to confirm these findings.

Potential Benefits and Considerations

Despite the need for further research, some experts believe at-home red light therapy can offer benefits for individuals with early or moderate hair shedding. This includes conditions such as postpartum hair loss, perimenopause or menopause-induced loss, stress-related shedding, and male pattern hair loss. Dr. Ross Kopelman, a New York-based hair restoration surgeon, previously stated, "I see red light therapy as a way to energize weakened hair follicles and keep them in the growth phase longer." He recommends it as part of a multi-pronged approach, combining it with other treatments like minoxidil.

Experts also highlight that red light therapy has few side effects for most people. However, those with photosensitive conditions, such as lupus, or individuals on medications like tretinoin, should exercise caution and potentially avoid it. If you're intrigued by the possibilities, we've compiled a list of nine red light therapy devices specifically designed for hair growth. While you could use a red light face mask on your head, these options are tailored to target your hair and scalp, offering an ideal delivery method. Below, explore the devices that best fit your needs and budget.

Top Red Light Therapy Devices for Hair Growth

1. Target: 5-in-1 Red Light Therapy Hair Styler and Heat Comb

This versatile hair tool not only dries, straightens, curls, and adds volume to hair but also incorporates red light therapy to support overall hair health during use. It's a multifunctional option for those who want to integrate red light therapy without adding extra steps to their routine. The styler features three fan speeds, three heat settings, a cold air button, and includes two styling clips and a protective heat glove. Currently priced under $100 at Target, it offers great value for its capabilities.

Promising Review: "So far I’ve used this about ten times in the last two weeks. It quickly became my favorite brush. The red light seems to make my hair softer. I feel like it’s been less damaged since using this brush maybe because it controls the frizz and gives me more volume that lasts the whole day. Having several brush options together in one brush makes my life so much more convenient, my bathroom so much neater and my hair definitely feels more healthy. This brush is amazing and I definitely think you should give it a try, especially those of you that do your hair every single day!!!" — momofstronggirls218

Price: $80 at Target (regularly $100)

2. Nordstrom: Red Light Hat from Higher Dose

Both stylish and functional, this red light hat from Higher Dose promotes scalp and hair health. It's easy to charge, cord-free, and lasts for up to four treatments per week. Users can apply it for just ten minutes at a time to stimulate the body's natural healing and growth processes.

Promising Review: "I have been extremely interested in at home red light treatments lately. I’ve had really good luck with red light for my face, so naturally the next step was to try red light for my hair. This red light hat from Higherdose has been wonderful so far. First off, the cap itself feels substantial. It is a pricey item, but I can tell it’s going to last some time. The treatments only take 10 minutes a day and it’s super easy to incorporate into my routine. The cap shuts off automatically after the 10 minutes is up and the battery life lasts awhile before needing to be recharged. I love that it’s hands free and cord free! Even on an extremely hectic day, I was able to throw this on and run out the door without anyone even knowing I was treating my scalp/hair. I am only one month in of use, so not quite at the optimal usage time for full results. However, I do feel like my hair has been looking better! I am excited to see what my results look like in a few more months. Remember, consistency matters and is key with products like this so you must use daily for best results. This comes with a really handy storage bag that I store it in and keep with all my other red light devices so I make sure to use it everyday! If you’re experiencing some hair loss or looking to just improve the overall health of your scalp/hair, I think this cap is absolutely worth the investment." — Alli1023

Price: $382 at Nordstrom (regularly $450)

3. Nordstrom: LED Light Headband

Ideal for hairline regrowth, this headband has received surprisingly positive reviews. It's designed to help hair grow thicker and more resilient through both red and blue light therapy. Wireless and rechargeable, it offers a hands-free option and can also soothe and reduce scalp irritation.

Promising Review: "Been struggling with thinning and loss for maybe 2 years now. I tried the supplements nothing. Tried the serums, kept forgetting to be consistent but this was in my face and SO easy to put on wear and just live my life around the house. Its about 15 minutes so before you know it its ready to come off. You can move it all around your crown so its not needed to stay in one spot you can adjust it and play around with it. I have been using this for 6 months solid and my hair density has came back." — Deepa Lee

Price: $94 at Nordstrom (regularly $110)

4. Amazon: LED and Laser-Powered Cap

Board-certified dermatologist Dr. Brendan Camp and other experts have commented on the effectiveness of red light therapy for hair growth. According to Dr. Camp, "low-level light therapy (LLLT) makes use of the biological effect of light on hair follicles," impacting mitochondria to increase cellular energy and protein production.

Based on this, we've previously covered the iRestore treatment helmet, an FDA-cleared laser system that uses 282 lasers and LED lights to stimulate hair follicles for new growth. The brand states this hands-free device uses an optical wavelength, can enhance results from other treatments like minoxidil, and is useful for conditions such as alopecia, receding hairlines, pattern baldness, and thinning hair.

Promising Review: "I bought this product after trying minoxidil several times with no success. I did a lot of research and several good studies done by neutral third-parties have shown this type of light therapy can work. I used this in combination with one other thing -- increasing my protein intake to at least 25 grams per meal, as per my doctor. She said it would take time, and it did. Unlike many others, I did NOT experience a shed before my new hair started to grow in, so that was good. I began seeing baby hair coming in at my hairline, at about the two month mark -- it was peach fuzz and in patches where I'd lost hair, so I knew it was new hair and not just regular regrowth. And that's obviously happening along my crown, too, but along your hairline it's much easier to see. Those hairs are between one and two inches long now, as I've been using the helmet for five months. So I'm calling this money well spent. I even bought a couple of hair pieces to wear before this, but now I won't be needing them anymore, which is SO liberating! I'm a customer for life. I also believe this product makes new hair grow in with thicker strands (which research also backs up), as it just seems to have more body (and therefore more coverage where your part is), without me changing any hair products. So that helps as well. I'm so beyond happy right now. Many negatives come with aging, but I was NOT ready to lose my hair!" — Diane

Price: $1,079 at Amazon

5. Revolve: LED-Powered Hair Brush

For those who don't mind a bit of effort, a hair brush with LED lights combines light therapy with scalp stimulation. Ergonomically designed for daily use, it includes a battery charging cord and provides a gentle massage to improve scalp circulation. The brand recommends using it twice daily for optimal results.

Promising Review: "Smart hair technology. I have been using it for two weeks, observed less hair on the floor and sink. It feels great on the scalp and I'm now starting to see hair fill in, and my hair is getting thicker. The quality is excellent." — Emily

Price: $90 at Revolve and Skin Gym

6. Dermstore: Scalp Massager with Laser and LED Lights

This scalp massager leverages lasers, LED lights, and massage to stimulate the scalp and hair follicles, potentially reducing fallout and encouraging healthy hair growth. The brand suggests using the device every other day for 2-3 minutes per area of the head.

Promising Review: "Oh the joy of getting the results you were hoping for! I bought this device because I have noticed my hair thinning for months now and after a little research I wanted to have something that gives a good scalp massage, so when I saw this one has that plus the LED lights, I knew this is it! It really is, because after a month my hair stopped falling out and after month two it started growing back! I love this!" — Jani007

Price: $499 at Dermstore

7. Amazon: Highly-Rated Laser and LED Red Light Cap

This FDA-cleared laser and LED cap is more affordable than some alternatives but requires longer and more frequent sessions. The brand recommends 25-minute sessions every other day to see visible improvements in hair growth and density. It's easy to use, lightweight, and comes with a remote control.

Promising Review: "I’ve been using this red light therapy cap consistently and I’m really happy with it so far. It’s lightweight, comfortable to wear, and very easy to use: I can put it on while relaxing or doing things around the house. The fit is good and it doesn’t feel heavy or awkward on the head. What I appreciate most is the quality of the device and how simple it makes sticking to a routine. After a few weeks of use, my scalp feels healthier and my hair looks better overall. Obviously hair growth takes time, but this is a great at-home option for anyone looking to support hair health with red light therapy. If you’re looking for a convenient, non-invasive way to add red light therapy to your routine, this is definitely worth trying." — Elly

Price: $337 at Amazon (regularly $457)

8. Hairmax: High-Powered Laser Diode Cap

While most red light therapy devices use LED lights, this cap is designed specifically for hair growth with lasers, though at a higher price point. It employs 272 medical-grade lasers for targeted delivery and full scalp coverage. The brand claims that three weekly seven-minute treatments can enhance hair density and growth.

Promising Review: "I’m a woman who was diagnosed with androgenetic alopecia in my mid-40s. Over the years, I’ve tried countless treatments—lotions, potions, and medications—in search of something that would truly make a difference. The Hairmax device has proven to be a powerful and effective addition to my treatment regimen. I’ve been using Hairmax consistently for two years, and while I initially wasn’t sure whether the improvements I saw were due to my medication or the device, the results spoke for themselves. My hair has grown noticeably longer, feels denser, and each strand seems just a bit thicker—subtle changes that have made a big impact on my confidence. I couldn’t be more pleased. Unfortunately, after two years, my original device stopped working. I held off on replacing it, curious to see whether its absence would make a difference. Within just two months of not using Hairmax, I began to notice increased shedding. While not drastic, it was enough to confirm that the device had been playing a key role in my hair health. I didn’t hesitate to purchase a replacement. I now recommend Hairmax to all of my female friends experiencing hair thinning. It’s not a miracle cure, but it has absolutely been a valuable and effective tool in managing my hair loss—and for that, I’m truly grateful." — Terra

Price: $1,799 at Hairmax