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The Theradome EVO LH40 is a premium FDA-cleared laser hair growth helmet featuring 40-80 medical-grade laser diodes designed by a former NASA scientist. Made in Silicon Valley, it offers hands-free, full scalp coverage with ergonomic comfort and rechargeable convenience. Proven to support healthier, thicker hair with consistent use, it’s a cutting-edge, safe, and durable solution for at-home hair wellness.











| ASIN | B07K391B39 |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Best Sellers Rank | #105,013 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #19 in Hair Regrowth Devices |
| Customer Reviews | 4.2 4.2 out of 5 stars (584) |
| Is Discontinued By Manufacturer | No |
| Item model number | LH40 EVO |
| Manufacturer | Theradome |
| Product Dimensions | 11.61 x 7.87 x 5.12 inches; 1.48 Pounds |
| UPC | 748252727206 |
6**Y
Quality Product. Realistic Expectations... Consistant use has brought great results.
March 2018: Arrived on time, comes with sturdy carry case. Unit is well made. Easy to use, just charge the Li-ion battery and press the button to start. It talks to you, but it's not annoying, 'Ready for treatment, place on head', ...'Five minutes remaining', ...'Treatment No. 2 completed.' If you take it off your head during treatment the lights go out. With it back on the head the lights come back on, and she says, “Treatment resumed.” It shuts off after 20 minutes. Overall very good design. No discomfort. My wife is using it also. I plan to start with one treatment per day, five times a week, M to F. If any negative results, will reduce to three treatments a week, M-W-F. The instructions say to use it at least twice a week, and allow a full 24 hours between treatments. I expect to see some improvement in existing hair strength after two months, 50 treatments. I expect to see new hair re-growth after 12 months, 260 treatments. I am 58 years old, and get my hair cut about once every ten weeks,... so not much happening up there in one month. April 2018: I plan to update this review each month with progress, if any. May 2018 update: It's working. Using six days a week. After 42 treatments I see stronger hair, the wavyness is coming back, and small new hairs coming in. I have a small red birth mark on my upper forehead, my hair line was well above this mark,, now I see fine hair next to and in front of it again,... the birth mark is not moving up my head! The hair line is moving back down. Increased to 5 stars. February 2019 Update. We continue to achieve great results. More thicker stronger curlier hair. The hairs that come back are the same color and texture as before. For several years [from about age 54 to 57] I was going about ten weeks between haircuts. Last year I after I started using the Theadome red laser hemit I got my hair cut every six weeks. Now, after nearly a year of treatment, I get my hair cut every three weeks, as I did when I was in my thirties,, the computer at GreatClips is keeping track. The lady at GreatClips can easily see the difference and told me, “Just keep doing exactly whatever you are doing.” The customer service at Theradome is excellent. The company stands behind their products. Dec 2022 Update. Still going strong after 1017 treatments. The battery was easy to replace. We were traveling over seas for a while and when my wife, 74 years old, got back to her regular hair dresser she screamed, “Oh my goodness! Honey, where did you get all this hair?!” Nov 2023 Update. The battery charger finally quit. Everything is still working, but the helmet can’t charge the battery. Theradome sent me a replacement battery and power adapter for free; when that didn’t fix it they offered me a replacement helmet at a 25% discount and free extended warranty. Determined to make it work, I dug the little circuit board out of the end of the battery, bought a battery holder, battery charger, and several new 18650 rechargeable batteries from Batteries Plus. I twisted the wires together, plugged it back in, stuck the battery holder to the helmet with double-stick tape,… “Ready for Treatment, Place on Head.” It’s not pretty, but it works. About once a week, I need to pull out the battery and swap it with the one in the charger. The reason there are three wires for the battery is the over-temperature alarm; when you hear the helmet say, “Error, Temperature High,” I believe she’s referring to the battery. Some cheap Chinese batteries don’t have over-temperature protection, even though there are three wires, the battery is telling the helmet everything is Ok even when it’s getting close to thermal run-away. Always buy Theradome replacement batteries. You could save $20 on a cheap battery, but your helmet could catch fire. Lithium-Ion batteries can be very dangerous. For my external battery setup, the charger on my nightstand has over-temperature protection built in.
Z**J
Great Results and Outstanding Support
I started using the Theradome helmet after experiencing hair shedding from a prescription treatment, and it’s been a game-changer. The helmet is comfortable, easy to use, and feels well made. I’ve already noticed my hair feeling stronger and healthier. When I had questions, the support team was incredibly helpful and responsive. Overall, I’m really happy with both the product and the company’s customer care.
C**C
Immediately register the helmet with Theradome
Still early in treatments but hair loss seems to have lessened. Looking forward to see what happens after a few months. Only problem so far was the power cord failed after 21 sessions. Stephanie at customer support was really great helping us get a new cord and then following up with to ensure all was working properly. She truly went the extra mile for us. Note…to overstate the obvious, be sure to immediately go on Theradome’s website after it arrives and register the helmet.
P**P
Don't Waste Your Money
I purchased this product in February of this year for over 1k. I was hoping for a change in my hair. No change. I used it as instructed. Still no change. Don't waste your money. To add, the thing did not work each time to set upon the head. Unfortunately, I waited too late to return it. It is not worth one star.
T**C
Theradome PRO really works
I have been using the Theradome PRO for quite a while and absolutely love it. Hair shedding stopped almost immediately and regrowth became noticeable in about 6-8 weeks. It is so easy to use; just put on the helmet, press the button and wear it for 20 minutes twice a week. It tells you what session you’re up to and how much time you have left in the session. I highly recommend to anyone having hair thinning issues. My wife just started using it and she loves it too!
B**R
Great product
Great product: my hair has improved in both quantity and thickness after using the helmet every other day for about 6 months now.
A**N
Good product and great Customer Service
Have had it since December 2019 and I think it helps...I've always had thin, fine hair, which gets worse as you age....great Customer Service with help in identifying why my unit stopped working recently. Stephanie was wonderful and patient in walking me through the possible issues....it's back working again and I'm back using it 3 -4 times a week after I wash my hair.
S**S
After purchase service review (not the product)
After purchase service is excellent. The charging cable and adaptor for some reason stopped allowing me to charge my LH40 helmet after 4 months of use. I called the service phone number and the agent promptly decided to send me a replacement cable and adapter, which i received within 5 working days. I can't say i've noticed a difference with my hair growth yet but remain hopeful. At least I know they back their products.
M**T
I’ve now been using this helmet 80 times- around 4 x a week. The difference is amazing. I had had extreme hair loss, but now there is very healthy new growth coming- about 2 inches long. I would highly recommend this product- it is an investment for new hair growth. Excellent product.
R**T
Ma femme l’adore!
A**R
I purchased it on 10.02.2023. The guarantee is 1 year. Don`t forget to reister it in their site. Extended guarantee of 5 years only for customers who live in the USA?! Realy? I pay the ame price as them! The replacement battery may not be shipped to our area – check it first! Let’s see how long will work. I grade it 4 stars and will be back to revise it If I am not satisfied with the result.
R**H
لا يوجد فائده منه ولا يوجد ضمان استرجاع كله مجرد كذبه اذا كنت تريد شعر اذهب للزراعه لا تصدقهم حتى لو كان معتمد من امازون 💶
C**E
Casque que j utilise depuis 2 ans pour traiter une alopécie. Il faut être patient avant d avoir une repousse de cheveux. Il a bien fallu 9 mois. Repousse que partiellement
Trustpilot
1 week ago
2 weeks ago