I feel like the lasers are hitting the same spots with each use. is that ok, or should i shift the helmet a little with each use? (model evo lh40)

Actually, each time you wear the Theradome the lasers are hitting slightly different parts of your scalp. But the way lasers work, once they hit the scalp, each laser beam spreads out, similar to water hitting a sponge, so it absorbs then scatters. Therefore you do not have to worry about trying to move the Theradome around to try to hit all spots on your scalp. After 20 minutes all the lasers light will have spread around fully around your scalp as well as penetrated deep within your scalp to hit the hair follicles. Hope this helps. Theradome Support Team

Is there a way to turn off the speaker?

Thanks for your question! Please press the master switch to turn the helmet on. Then double click the master switch to adjust the volume. The word “Theradome” will be spoken at your chosen volume level. You may double click the switch to lower the settings, which will decrease from loud, medium, soft, and silent before looping back to loud.

Can the battery be replaced myself if it dies or will it have to be returned to manufacturer for battery replacement?

Changing the battery is straight forward and you don't need to send your helmet back to us to replace. We have simple instructions and a video if you prefer to go through how to replace.

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Theradome EVO Laser Hair Growth Helmet LH40 – 100% Laser, No Ineffective LEDs – FDA-Cleared Red Light Therapy for Hair Regrowth 4x Week – Made in the USA

Theradome EVO Laser Hair Growth Helmet LH40 – 100% Laser, No Ineffective LEDs – FDA-Cleared Red Light Therapy for Hair Regrowth 4x Week – Made in the USA

Product ID: 99789494

Details

Age Range (Description)
Adult
Brand
Theradome
Item Form
Laser Hair
Item Weight
672 Grams
Scent
Unscented

🔴100% medical-grade laser diodes

🧠Designed by ex-NASA scientist

🇺🇸Made in Silicon Valley, USA

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29986 L

Duties & taxes included

In stock

Sold byAmazon MoldovaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Age Range (Description)
Adult
Brand
Theradome
Item Form
Laser Hair

Description

🔴 Unlock your hair’s full potential with science-backed laser therapy!

PURE LASER POWER - No ineffective LEDs—just 40 premium laser diodes for maximum scalp penetration.
FDA CLEARED CONFIDENCE - Clinically approved for safety and effectiveness—trust your hair wellness routine.
HANDS FREE FULL COVERAGE - Ergonomic helmet design targets hairline, temples, and crown effortlessly.
SCIENTIFICALLY ENGINEERED - Developed by a former NASA scientist to deliver precise, consistent light therapy.
SEAMLESS ROUTINE INTEGRATION - Use 4x weekly alongside your favorite shampoos and serums for amplified results.

The EVO Laser Hair Growth Helmet LH40 harnesses 100% medical-grade laser technology—no LEDs—to deliver targeted red light therapy for hair regrowth. Designed by a former NASA scientist and made in the USA, this FDA-cleared device offers hands-free, full scalp coverage with 40 premium laser diodes. Lightweight and ergonomic, it fits seamlessly into busy lifestyles, supporting healthier, thicker hair with just four weekly sessions.

Specifications

ASIN	B07K391B39
Age Range (Description)	Adult
Age Range Description	Adult
Best Sellers Rank	#110,078 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #19 in Hair Regrowth Devices
Brand	Theradome
Brand Name	Theradome
Customer Reviews	3.7 out of 5 stars 155 Reviews
Global Trade Identification Number	00748252727206
Hair Type	All hair types
Item Form	Laser Hair Growth Helmet
Item Weight	672 Grams
Manufacturer	Theradome
Manufacturer Part Number	LH40 EVO
Model Number	LH40 EVO
Number of Items	1
Recommended Uses For Product	Hair Growth
Scent	Unscented
Scent Name	Unscented
UPC	748252727206
Unit Count	1 Count

Reviews

D**D

16.07.2025

T**S

13.04.2026

L**D

27.03.2020

D**H

2.10.2025

D**Z

28.11.2025

E**F

11.06.2024

R**Y

28.02.2026

S**S

20.11.2025

M**5

5.11.2025

V**.

18.05.2024

D**I

29.09.2025

C**N

7.05.2024

R**0

9.06.2025

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