5 Best Red Light Therapy Devices for Hair Growth in 2023

As people seek natural solutions to hair loss problems, the popularity of red light therapy has soared. While previously only available at medical spas and clinics, this non-invasive hair loss treatment has become more accessible thanks to portable devices allowing at-home use.

In case you’re unfamiliar, red light therapy utilizes low levels of laser and infrared light to penetrate the scalp and encourage the growth of new, healthy cells. Additionally, it can boost blood circulation and oxygen supply to the scalp, resulting in faster hair growth.

This article will examine the five best red light therapy for hair growth in 2023.

Red Light Therapy and Hair Growth

Red light therapy, also called photobiomodulation or low-level laser therapy (LLLT), has become increasingly popular in the beauty industry due to its proven effectiveness in promoting hair growth.

Recent scientific studies demonstrate that red light therapy penetrates the scalp using energy from visible red light and invisible near-infrared wavelengths of light. This treatment enhances blood flow and stimulates the creation of ATP, which is crucial for cellular functions and hair development.

Additionally, it elevates cell metabolism and encourages collagen production, strengthening hair follicles and reducing inflammation. Red light therapy is a risk-free and non-intrusive method with proven efficacy in treating various hair-related ailments, such as alopecia, thinning hair, and male pattern baldness, without any negative side effects.

Studies on Red Light Therapy and Hair Growth

While some evidence suggests that RLT may be effective for hair loss, the optimal treatment protocol is still being investigated. Here are some key findings from recent research:

The best wavelengths for red light therapy for hair loss

The wavelength used in red light therapy is an important factor in determining its effectiveness, as different wavelengths of light have different effects on the body. Red light therapy typically uses light in the range of 630-670 nm.

However, the optimum wavelength for red light therapy is still debated and researched.

Many studies on red light therapy have used light sources in the 655nm ± 20nm range, close to the middle of the red light spectrum. This wavelength range effectively promotes cellular activity, and reduces inflammation.

Effective Power Density

The power density, or strength, of the RLT, also is important. A study published in the Journal of Cosmetics found that power density above 50 mW/cm2 was more effective at stimulating hair growth than lower power densities.

Treatment Duration

The duration of RLT treatment sessions also plays a role in their effectiveness. A study published in the journal Lasers in Medical Science found that a 25-minute daily session of RLT over 16 weeks led to significant improvements in hair density and thickness compared to a control group. The general recommendation is that each session should last anywhere from 15 to 30 minutes, with multiple weekly sessions.

The Top 5 Best Red Light Therapy Devices for Hair Growth

Scienlodic Red Light Therapy Hair Growth Hat 

Scienlodic Red Light Therapy Hair Growth Hat

The Scienlodic red light therapy hat for hair growth is a versatile solution that can fit most head sizes thanks to its deformable design. It’s also portable, and you can power it with a rechargeable battery to use it on the go.

This cap is the perfect choice for anyone looking to address hair loss, as it’s specifically designed to stimulate hair follicles and increase circulation in the scalp area. With its 120 powerful LED lights, the cap allows you to target hair loss more effectively and painlessly than other solutions like laser combs or shampoos.

Additionally, the cap emits 660nm red light and 850nm infrared light, which are proven to be effective at promoting hair growth without any side effects.

You can even wear this red light therapy at home for hair growth or while engaging in activities like running or exercising, as its lightweight and comfortable design won’t hinder your movement.


  • FDA-cleared
  • Multi-wavelength treatment
  • In comparison to other hair growth products, it is cost-effective
  • Easy to use at home


  • Not stylish enough


  • Gray and black colored Scienlodic RTL Hat is available for $199.99; 2-year warranty.

Hairmax LaserComb

Hairmax LaserComb

HairMax is a brand of hair growth device that uses safe laser light energy to stimulate hair follicles and promote healthier hair growth. The HairMax LaserComb is a hand-held device that uses parting combs to improve the delivery of distributed laser light to the scalp.

It is a Class 3R lower-level laser therapy device that is FDA-approved and has a single laser module that emulates nine beams at a wavelength of 655 nm (+/-5%).


  • A hand-held, portable device that is easy to use
  • FDA-cleared and clinically-proven
  • It contains 9 or 12 lasers to target specific thinning areas or cover the entire scalp for treatment.


  • Longer time to results
  • Lasers are prone to side effects such as itchy scalp when not operated professionally


  • Ultima 9 Classic LaserComb: Regular price $199.00; 1-year warranty
  • Ultima 12 LaserComb: Regular price $399.00; 1-year warranty.

Capillus Laser Cap

Capillus Laser Cap

Capillus offers different caps, ranging from entry-level to mid-range, varying in laser energy output from 410 mW to 1,360 mW. Pure laser light sources are their speciality

These caps emit lasers in the 650 nm wavelength, a visible red light band. They look like regular baseball caps and have been featured on Queer Eye as a confidence-boosting device.


  • Automatic programming of treatment sessions for ease of use
  • Variety of laser intensities


  • Expensive


  • Capillus One S: One-time payment of $934.15 or $28 per month; 3-year warranty
  • CapillusPlus S1: One-time payment of $1,699.15 or $56 per month; 3-year warranty
  • Capillus Pro S1: One-time payment of $2,999.00 or $84 monthly; 3-year warranty.

iRestore Laser Hair Growth System

iRestore Laser Hair Growth System

The iRestore Laser Hair Growth System is a home-use laser hair therapy helmet that stimulates hair growth using low-level light therapy. It uses 21 lasers at 650 nm and 261 light-emitting diodes (LEDs) with 630 nm/660 nm wavelengths to promote cellular metabolism and enhance blood circulation.

There are two types of iRestore Laser Hair Growth Helmets: the iRestore Essential and the iRestore Professional, with the latter having a higher laser output and offering faster treatment times.

Despite its cost, the iRestore provides maximum light intensity for its price point.


  • High laser intensity
  • Ventilated design: The advanced ventilated design of the iRestore systems allows for improved airflow and comfort during use, making them a more pleasant experience overall.


  • Expensive
  • The inconvenience of helmets


  • iRestore Essential: $695. Starting at $45/month; 3-year warranty
  • iRestore Professional: $1,195. Starting at $77/month; 4-year warranty

Theradome Laser Hair Growth Helmet

Theradome Laser Hair Growth Helmet

They are differentiated by being the only brand on the market, 680nm, which is believed to be ideal for stimulating hair growth.

However, there is no clear consensus on the optimum wavelength for hair loss treatments, so it is difficult to make a definitive judgment on the efficacy of the Theradome. Still, Theradome has developed a wide range of satisfied customers who have seen excellent results with the treatment.


  • Design of 80 laser diodes emitting 680nm red light
  • Optimal efficiency and comfort are provided.


  • The helmet is relatively expensive compared to other hair growth treatments available.


  • Theradome EVO LH40: $995 or payment starting from $58/month; 1-year limited warranty
  • Theradome PRO LH80: $695 or payment starting from $58/month; 1-year limited warranty

Guide to choosing the best red light device for hair loss


As mentioned above, please select a combination of 630-680nm and 800-880nm wavelengths

Safety and Comfort: 

Red light therapy can be uncomfortable or dangerous if done incorrectly. Choose a device with safety features such as an auto shut-off timer and gentle LED devices.

Additionally, verifying if the device is FDA-cleared and has the necessary safety certifications to ensure its efficacy and safety is crucial.

Coverage Area:

When considering red light therapy hair growth at home, paying attention to the device’s coverage area is crucial. To achieve optimal results, choosing a device with a wide coverage area that can effectively target all areas of hair loss is recommended.


Consider using red light therapy for hair growth at home as a top factor when choosing a device to combat hair loss. If you don’t want the device to directly touch your skin, a handheld option that can be used from a distance may suit you.

Alternatively, if you prefer convenience and comfort, a hat-style device with adjustable settings and wider coverage may be a better option for targeting specific areas on your scalp.


When choosing the best red light therapy device for hair loss, it is essential to consider how easy it is to use. Look for lightweight, portable devices with simple instructions that don’t require complicated setup or additional equipment.

Additionally, check if the device has a timer so that you can easily keep track of your treatments. A user-friendly device will make it much easier to follow through with your treatments and achieve the best results.


One of the most important factors to consider when choosing a Red Light Therapy device for hair growth is its price. It’s important to ensure you get an affordable, effective product that won’t break the bank. Look around at different products and compare prices to get the best deals.

It is important to consult a medical professional before purchasing devices for your treatment. You can follow the tips in some of the guides to the best red light therapy devices and discuss with your medical advisor to determine the treatment level most suitable for you.


When it comes to stimulating hair growth with red light therapy at home, choosing the best device that suits your needs is important. Consider the features and benefits of each product before making a purchase. You can also use scalp micropigmentation as an alternative to red light therapy for hair growth.

Although some devices may require a higher initial investment, the long-term benefits of improved hair growth and scalp health are invaluable.

Related Articles

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top button