Wellue vs iRESTORE vs Theradome: Which Laser Hair Growth Helmet Is Right for You?

How to Use Low-Level Laser Therapy for Hair Growth at Home

Aug 13, 2026 By Wellue Health

Wellue laser hair growth helmet compare with iRESTORE and Theradome laser hair growth helmet

Laser hair growth helmets may look similar, but the technology inside them can be very different.

Some use only laser diodes. Others combine lasers and LEDs. Wavelengths, treatment schedules, light-dose specifications, battery designs, and prices can also vary significantly.

In this comparison, we look at three FDA-cleared at-home hair growth systems:

Wellue Laser Hair Growth Helmet
iRESTORE Professional
Theradome PRO LH80

Rather than judging them by diode count or a single power number, we’ll compare the specifications that actually help explain how each device is designed to deliver low-level light therapy.

Quick takeaway: Wellue focuses on an all-laser 650nm system with built-in cordless operation and published irradiance and fluence specifications. iRESTORE Professional uses a larger hybrid array of lasers and LEDs. Theradome PRO LH80 uses an all-laser 680nm system with the shortest weekly treatment routine of the three. None of these differences alone proves that one device will produce better hair-growth results for every user.

Wellue vs iRESTORE vs Theradome: Quick Comparison

Feature

Wellue Laser Hair Growth Helmet

iRESTORE Professional

Light Source

82 lasers

82 lasers + 200 LEDs

Total Diodes

82

282

Laser-Only

Wavelength

650nm

655nm

Session Length

30 min

25 min

Recommended Frequency

3×/week

Every other day

Cordless Use

Fully cordless, uilt-in rechargeable battery

Standard version uses a power cord; rechargeable upgrade uses an external battery pack connected by cable

FDA-Cleared

Listed Price

$299

$799

*Prices checked August 13, 2026. Promotional pricing may change.

Light Source: Laser-Only vs Laser + LED

The most obvious technical difference is how each manufacturer builds its light array.

Wellue Laser Hair Growth Helmet

Wellue uses:

82 × 650nm laser diodes

There are no LEDs in the array. The current product specification describes it as a 100% laser design.

iRESTORE Professional

iRESTORE Professional uses:

82 lasers + 200 LEDs

for a total of:

282 light sources

The manufacturer describes the combination of lasers and LEDs as part of its approach to scalp coverage.

Theradome PRO LH80

Theradome uses:

80 laser diodes

with no LEDs. Its current specification page describes these as VL680 lasers.

Does having more diodes mean better performance?

Not necessarily.

Diode count tells you how many emitting components are inside a device, but not how much light reaches a given square centimeter of scalp or how much energy is delivered over a complete treatment.

A meaningful comparison also needs to consider:

wavelength,
irradiance,
dose,
coverage,
beam distribution,
session length,
and treatment frequency.

For that reason, 282 light sources should not automatically be interpreted as 3.4 times the treatment strength of an 82-laser device.

Wavelength: 650nm vs 655nm vs 680nm

The published wavelengths are:

Wellue Laser Hair Growth Helmet: 650nm
iRESTORE Professional: 655nm
Theradome PRO LH80: 680nm ±3nm

These numbers are close enough that it would be misleading to turn wavelength alone into a simple ranking.

For example:

680nm is a larger number, therefore it is better.

or:

650nm is closer to a particular study, therefore it must be better.

Neither conclusion follows from wavelength alone.

The complete light-delivery system—including dose, coverage and treatment duration—matters more than comparing wavelength as an isolated specification.

Laser hair growth helmet wavelength comparison

Power, Irradiance and Energy Density Are Not the Same Thing

This is one of the most important points when comparing these devices.

Manufacturers do not always publish the same optical measurement.

Wellue: Irradiance & Energy Density

3.54 mW/cm² irradiance
6.372 J/cm² energy density per 30-minute session

iRESTORE Professional: Total Power Output

1,410 mW total power output

Theradome PRO LH80: Total Treatment Energy

727 J total energy per treatment

These figures measure different things:

Total power output (mW): total optical power produced by the device
Irradiance (mW/cm²): light power delivered per unit area
Energy density (J/cm²): total light energy delivered per unit area over a session
Total treatment energy (J): total energy delivered across the treatment

Because the units and measurement methods differ, a larger number does not automatically mean a stronger or more effective treatment.

A fair comparison should consider the complete treatment design, including wavelength, irradiance, energy density, coverage, treatment time, and frequency.

Treatment Schedule: The Largest Everyday Difference

For many buyers, the treatment schedule can matter just as much as technical specifications such as wavelength or energy output.

LLLT requires repeated use over time, so the easiest device to use consistently may depend on how much time you are prepared to commit each week.

Wellue: Irradiance & Energy Density

30 minutes per session
3 times per week

Approximate weekly time:

90 minutes

The Wellue Laser Hair Growth Helmet is designed for 30-minute sessions, three times per week, for a total treatment time of approximately 90 minutes per week.

iRESTORE Professional

25 minutes per session
Every other day

Depending on the calendar week, this generally means three or four sessions.

Approximate weekly time:

75–100 minutes

The current iRESTORE page specifies 25-minute treatment every other day.

Theradome PRO LH80

20 minutes per session
2 times per week

Approximate weekly time:

40 minutes

Theradome therefore has the lowest recommended weekly treatment time of these three models.

Cordless Design: An Important Difference Hidden by the Word “Wireless”

Calling all portable configurations simply “wireless” can hide an important design difference.

Wellue: Battery Built Into the Helmet

Wellue contains a 3800mAh rechargeable battery inside the helmet.

Once charged, there is:

no wall connection during treatment,
no external battery pack,
and no cable connecting the helmet to another device.

The listed operating time is approximately four hours per charge.

iRESTORE Professional: Wired Standard Version or External Rechargeable Battery

The standard iRESTORE Professional is explicitly sold as the:

Wired Version

iRESTORE also offers a $79 Wireless Upgrade with a rechargeable battery. Its official product imagery shows this as a separate battery pack used alongside the helmet.

So the upgrade allows treatment away from a wall outlet, but the power source is still a separate external component connected to the helmet.

This is different from a battery physically integrated into the helmet.

Theradome PRO LH80: Battery Built Into the Helmet

Theradome describes the PRO LH80 as:

rechargeable and wireless

and lists a built-in 2200mAh battery in its specifications.

This is mainly a convenience difference rather than a treatment-effectiveness difference.

Laser hair growth helmet cordless design comparison: Wellue and Theradome built-in batteries vs iRESTORE external battery pack

FDA Clearance: Similar Regulatory Category, Not a Performance Ranking

All three products are marketed as FDA-cleared hair-growth devices.

The Wellue Laser Hair Growth Helmet is cleared under K232356 for its specified use in eligible men and women with androgenetic alopecia.

iRESTORE Professional 282 is listed in the FDA database under K183417, with a substantial-equivalence decision dated May 17, 2019.

A key point for buyers is that:

FDA clearance is not an FDA comparison or ranking of competing helmets.

It does not mean that the FDA has determined that one of these three devices grows more hair than another.

Which Device Has the Most Convenient Routine?

There is no single answer because “convenient” can mean different things.

Lowest weekly treatment time

Theradome PRO LH80

At approximately 40 minutes per week, it requires less scheduled treatment time than the other two.

Fully self-contained cordless treatment

Wellue and Theradome

Both integrate the rechargeable battery into the helmet.

Largest number of light sources

iRESTORE Professional

Its hybrid array contains 282 total lasers and LEDs.

Lowest current purchase price

Wellue

At the time this comparison was checked, Wellue had the lowest listed price of the three.

These are objective differences in product design and pricing—not evidence that one model will grow more hair than another.

Laser-Only vs Laser + LED: Is One Proven Better?

Wellue and Theradome use laser-only arrays.

iRESTORE Professional combines lasers and LEDs.

That difference is easy to describe, but much harder to turn into an effectiveness conclusion.

Laser diodes produce more directional light, while LEDs typically emit over a broader angle. However, real-world photobiomodulation treatment also depends on:

wavelength,
optical power,
irradiance,
energy density,
device geometry,
treatment area,
and treatment duration.

Therefore:

Laser-only does not automatically mean better.

Likewise:

More total laser + LED diodes does not automatically mean better.

Without a controlled head-to-head study using these exact three devices, the most defensible conclusion is simply that they use different approaches to light delivery.

Who Might Prefer Each Design?

Instead of declaring an overall winner, it is more useful to look at which design characteristics different buyers may value.

Wellue may be relevant to buyers who value:

an all-laser 650nm array,
a battery physically integrated into the helmet,
published irradiance and energy-density specifications,
and a lower current upfront price.

The trade-off is a 30-minute, three-times-weekly schedule, which requires more weekly treatment time than Theradome.

iRESTORE Professional may be relevant to buyers who value:

a large 282-diode light array,
a combined laser + LED design,
and the option to add portable rechargeable power.

The trade-off is that its rechargeable option uses a separate external battery pack, and its current upfront price is considerably higher than Wellue's.

Theradome PRO LH80 may be relevant to buyers who value:

an all-laser system,
a battery integrated into the helmet,
and a relatively short treatment schedule of 20 minutes twice weekly.

Its current listed price is the highest of the three devices in this comparison.

What This Comparison Cannot Tell You

Specification comparisons have limits.

This article does not establish:

which helmet produces the most regrowth,
which works fastest,
whether 650nm, 655nm or 680nm is clinically superior,
whether laser-only is more effective than laser + LED,
or whether a higher total power number leads to better outcomes.

Those conclusions would require direct comparative clinical evidence.

There is no head-to-head trial reviewed here that randomly assigned patients to Wellue, iRESTORE Professional and Theradome PRO LH80 under the same study conditions.

FDA clearance also should not be interpreted as a comparative effectiveness endorsement.

The table is best used to understand how the products differ, not to turn specifications into unsupported clinical rankings.

Final Comparison

The three helmets take different engineering approaches to at-home light therapy.

Wellue uses 82 × 650nm lasers, publishes irradiance and energy density, includes its battery inside the helmet, and currently has the lowest purchase price of the three.

iRESTORE Professional uses a much larger hybrid array of 82 lasers plus 200 LEDs and publishes 1,410 mW total device output. Its standard version is wired, while rechargeable portability is available through a separate battery pack.

Theradome PRO LH80 uses 80 × 680nm-class lasers, contains a built-in rechargeable battery and has the shortest recommended weekly treatment schedule in this comparison.

There is no single specification that makes one of these devices objectively “best.”

A more useful buying decision is to compare:

light source, published dose information, treatment schedule, cordless design, FDA-cleared indication, and total cost

and decide which combination fits your priorities and the routine you are most likely to follow consistently.

Frequently asked questions

Which has more lasers: Wellue, iRESTORE Professional or Theradome?

Wellue contains 82 lasers, iRESTORE Professional contains 82 lasers plus 200 LEDs, and Theradome PRO LH80 contains 80 lasers.

Therefore, Wellue and iRESTORE Professional contain the same number of laser diodes, while iRESTORE adds 200 LED light sources.

Which is fully cordless?

Wellue and Theradome both integrate rechargeable batteries into the helmet itself.

The standard iRESTORE Professional is wired. Its optional rechargeable upgrade allows use away from a wall outlet but uses a separate battery pack connected to the helmet.

Which requires the least treatment time?

Theradome PRO LH80 has the lowest recommended weekly time commitment at approximately 40 minutes per week.

Wellue requires approximately 90 minutes per week, while iRESTORE Professional requires approximately 75–100 minutes, depending on how alternate-day treatments fall within the week.

Is iRESTORE's 1,410 mW stronger than Wellue's 3.54 mW/cm²?

The two values cannot be directly compared.

iRESTORE's number is total power output, while Wellue's figure is irradiance per unit area. They use different units and describe different optical properties.

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Not by itself.

Laser-only versus laser + LED is one difference in device architecture, but treatment performance also depends on wavelength, dose, coverage, session time and other factors. No direct three-device clinical study reviewed here establishes that laser-only systems outperform hybrid systems.