Experts Say These Devices Can Reverse Thinning and Shedding (2025)

According to ELLE deputy visual editor Scott Lacey, this device is “very easy to use and comfortable.” The helmet uses red light therapy to target shrinking follicles, stop hair growth, and allow it to grow back. “The CurrentBody device is powerful, hands-free, and has Bluetooth speakers, which is a really nice touch,” says Dr. Finney, a board-certified cosmetic dermatologist and hair loss expert based in New York City. For just ten minutes a day, this device’s clinical trials have shown a reversal of hair loss in just four months.

Red light wavelength: 640nm

Best used: Daily

CurrentBody rating: 4.6/5 stars

A CurrentBody reviewer says: “Easy to use and size fits perfectly. It’s so nice that the timer and Bluetooth connected automatically. It’s comfortable to wear and its weight is not heavy. The light feels warm and the material feel so durable!”

While this device doesn’t claim to help regrow hair overnight, it does promise results quicker than others on the market. Using laser technology, this helmet improves hair density and volume and stimulates hair growth in as little as one month. Plus, while most devices recommend daily treatments, Theradome recommends 20-minute sessions twice weekly. “I also like the Theradome PRO LH80. It is easy to use and makes for a painless at-home treatment,” says Dr. Lal.

Red light wavelength: 680nm

Best used: Two times a week

Amazon rating: 4.3/5 stars

An Amazon reviewer says: “This product saved my long, pretty hair. I’d lost so much hair from the stress of learning I had a brain tumor and then from general anesthesia from the necessary cranial surgery. Ultimately, I had bald patches on the sides of my hair and thinning around the incision and top of my head. For over a year nothing helped and my hair loss worsened. BUT! Within 3 months of using Theradome, I saw baby hairs return. After a year of use my hair is back to 80% with new hair coming in daily. I will never be without my Theradome!”

Here’s another option for an unassuming yet efficacious red light hat. This one requires only 10 minutes a day to address hair loss in both men and women, and it promises to deliver new growth by months five or six. You may see a little more hair loss than usual when you start using the cap, but don’t worry—the brand says that’s perfectly normal, and it just means that weaker strands are stepping aside so stronger ones can move in.

Red light wavelength: 650nm

Best used: Once a day

HigherDose rating: 4.9/5 stars

A HigherDose reviewer says: “Before using, I would have handfuls of hair come out in the shower, but I see so much less shedding. I see less white scalp than before, and I see new growth!”

Aphrona’s FDA-approved laser therapy cap is on the more budget-friendly side as far as hair loss-fighting light therapy devices go. Even still, customers report seeing a difference just weeks after first trying it—and all you need to do is keep it on for 30 minutes every other day.

Red light wavelength: 650nm

Best used: Three to four times a week for thirty minutes each

Amazon rating: 4.4/5 stars

An Amazon reviewer says: “I have used this red light hair therapy hat for half a year, and I think it deserves a review. I decided to get it because I used a red light face therapy mask, and it worked pretty well. I am in my mid 40s and started noticing a worrisome amount of hair loss. I noticed there were some light tingling feelings on my skull when I had this hat on. I used it every day for 30 minutes. It is so convenient that I can wear it when I am working from home or doing house work. I did notice that I had some new hair growth. About two months after I purchased it, I started to notice some new hairs on top of my head. During this half year, I stopped using it for about one month, due to travel. I did notice some increased hair loss. I put it back on right after I got back home. I took another picture recently, and my hair looks fuller and healthier.”

Think of this device as an oversized headband that works overtime to reduce and reverse hair loss. Whether you prefer to use it preventively or to target specific areas, this uses red light therapy to assist in your hair growth goals. “The Hairmax device is great for people with really early stages of hair loss that may have very thick hair; the device has teeth that part the hair to allow the light to get to the scalp,” says Dr. Finney.

Red light wavelength: 655nm

Best used: Three times a week

Amazon rating: 3.9/5 stars

An Amazon reviewer says: “Very good device! It works fast! You can see the results in a very short time. My hair started growing back and thickening very quick! It’s even helping me with the grey hairs–are turning back to my original color! I love this product! Its 100% worth the purchase!”

If you’re unsure about investing in a device to reduce hair loss, this tool makes it easy to have no regrets. Not only are the clinical results astonishing–100 percent of men studied saw significant results–but if you don’t love it, you can return it even six months later. Plus, with comfortable padding and hands-free technology, you can go about your day mid-treatment without worry. “I like the iRestore Essential Device. My mom uses it. It is very comfortable and easy to use. It has laser and light-emitting diodes. It is affordable, and the company is very responsive,” says Dr. Lal.

Red light wavelength: 655nm

Best used: Three times a week

Amazon rating: 4/5 stars

An Amazon reviewer says: “I’ve been using the iRestore for almost two months. I also use Rogaine for women once a day (the directions are to use it twice), and I take the Nature’s Bounty Hair, Skin, and Nails gummy vitamins that have biotin. I’ve been using different hair-loss shampoos as well—Bosley Defense and Pronexa alternately. I thought the shotgun approach would be the best way to address the problem. I’m happy to say that my hair is regrowing beautifully. I’m no longer self conscious about my hairstyle. I have lots of new baby hair coming in, and it’s my natural dark color, not white like a lot of my hair is. I give most of the credit to the iRestore helmet; I’ve tried Rogaine for women in the past with little result, but this time around my hair is really responding.”

This HairMax comb isn’t like other combs—it comes with twelve medical-grade lasers that fire directly at follicles, encouraging density and fortifying weaker hairs. Unlike the other devices on our shortlist, you do have to use your hands, but it also comes in handy for any areas that your cap may not cover.

Red light wavelength: 655nm

Best used: Three times a week for eight minutes each

Amazon rating: 3.9/5 stars

An Amazon reviewer says: “To my surprise, the product actually delivered results—my hair went from thin and brittle to noticeably thicker, and I even started seeing a lot of baby hairs grow in. For that, I truly appreciate what the device has done for me.”

Massaging your scalp daily to stimulate blood flow is essential for boosting hair growth. Oiling your scalp can help too, and this device combines both, allowing you to apply your favorite hair growth oil while encouraging circulation. But what makes it a triple threat is that it also offers red light therapy for the ultimate hair growth-encouraging experience.

Red light wavelength: 850nm

Best used: Daily

Amazon rating: 4.1/5 stars

An Amazon reviewer says: “Love massaging my scalp. Feels amazing and oils your scalp at the same time as massaging it with red light therapy. 100 percent recommend this product.”

Dr. Robert Finney is a board-certified cosmetic dermatologist and hair loss expert based in New York City.

Dr. Karan Lal is double-board certified pediatric and cosmetic dermatologist based in Scotssdale, Arizona.

“The hair market has grown substantially in the past few years. For many people, their hair is an identifier. Hair loss is a very emotional condition in my clinic, with many of my patients having depression and anxiety related to their hair loss,” says Dr. Lal.

The pandemic also increased the need for more support for patients suffering from stress-induced hair loss. “There is a type of temporary hair loss called telogen effluvium. In this condition, a lot of the hairs all over the scalp go into the resting phase all at once–this is seen clinically as an abrupt, significant increase in shedding. COVID was a cause of this, so during the pandemic, many people were noticeably concerned when they saw a lot of hair fall. This has likely driven a lot of focus on the cause and treatments of hair loss,” adds Dr. Finney.

“Low-level laser light therapy in the red light range triggers a reaction in the cells that help regenerate the hair to do several things: improve the blood supply of nutrients, improve the health of the cells that help regenerate the hair, and help reduce the local effects of hormones on the hair follicle. All of this helps to regrow new hairs and reverse the miniaturization of damaged hairs,” says Dr. Finney.

“There are many different types of light therapy for hair loss, especially red light and blue light. Red light reduces inflammation and increases energy in our skin and hair cells. Blue light, on the other hand, is said to induce low-level hair growth through a different mechanism. In a recent study, blue light increased hair density and shaft diameter by 90% after ten weeks of use. Similar findings have been reported with red light helmets as well,” says Dr. Lal.

If the thought of putting a high-tech helmet on top of your head makes you nervous, you don’t need to worry. “It doesn’t get any safer. For one thing, it is just light, which is natural. It doesn’t penetrate deep into the skin. We have plenty of studies to support the use of red light to help with inflammation and signs of aging, so there is that added benefit compared to some of our topical options that can create inflammation. I will often recommend these devices in conjunction with a topical routine. Not only do we have studies to support synergy between the two, but if you were to get any irritation from a topical, the red light could help ameliorate it!” says Dr. Finney.

However, it is important to know that there can be some mild side effects, depending on the tool you use. “Blue light devices can darken your hair or scalp because blue light does affect pigment-making cells, so just be mindful of that,” says Dr. Lal. Each device comes with a certain set of instructions, so it’s important to read the manual carefully and follow the manufacturer’s recommendation.

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