5 Best Light Therapy Devices For Hair Growth: Unlock The Ultimate Hair Growth Secret

In a world where hair loss affects an astounding 50 million men and 30 million women in the United States alone, the search for effective hair regrowth solutions has intensified. Many individuals facing this common predicament are torn between traditional pharmaceutical hormone therapies and wanting to explore healthier, more natural alternatives.

The need for a safe, sustainable, and efficient method has raised a paradoxical question: Can light therapy hold the key to unlocking a new era of hair regrowth?

As we delve into this intriguing inquiry, we will unravel light therapy’s complexities, comprehending its diverse types, underlying principles, optimal dosages, and the 5 best at-home red light therapy devices for hair growth.

What Light Therapy For Hair Growth

Light therapy’s innovative approach utilizes the power of different light wavelengths to promote hair follicle activity, leading to potentially remarkable results. Four types of light are commonly used in hair growth therapy: red light, blue light, laser, and LED light. Each type possesses unique properties and benefits, making them intriguing contenders in the quest for luscious locks.

Red Light Therapy

Also known as low-level laser therapy (LLLT), red light therapy enhances cellular metabolism and increases blood flow to the hair follicles. Studies have shown promising results in stimulating hair growth and improving hair thickness [1].

We’ll expand on its further benefits below.

Blue Light Therapy

This light therapy mainly targets the scalp’s surface to reduce inflammation and combat harmful bacteria. Research has suggested that blue light can help alleviate certain scalp conditions that may hinder hair growth.

As an illustration, research discovered that blue light possesses potential in managing psoriasis, a condition that may have implications for hair loss. Given that scalp psoriasis is a variant of psoriasis impacting the scalp, the potential advantages of blue light therapy extend to its management. By specifically addressing scalp inflammation and controlling the proliferation of skin cells, blue light therapy could potentially aid in the management of psoriasis [2] while fostering a favorable atmosphere for hair regrowth.

Laser Therapy

Laser therapy is characterized by its ability to target hair follicles using concentrated light beams, which are believed to provide a more focused and effective treatment. This approach has shown promise in promoting cellular activity and potentially increasing hair density.

In a randomized controlled trial [3], laser therapy demonstrated efficacy in improving hair count and thickness in men with androgenetic alopecia. Laser therapy for hair growth typically utilizes red light lasers.

However, the notion that laser therapy is inherently more effective seems to be somewhat misleading. The clinical validation of whether coherent laser light offers any advantages over non-coherent LED light has yet to be established. Additionally, in cases where larger areas of tissue need to be treated, such as overall scalp baldness, laser therapy may not present any significant advantage. Instead, the use of LEDs is becoming more common [4].

LED Light Therapy

LED light therapy is an equally effective and safer alternative to laser therapy.

Unlike lasers, LED therapy scatters light, making it suitable for treating larger areas of the scalp with both red and infrared light. Studies show that LED therapy can effectively address hair-related concerns, offering comparable efficacy to laser therapy. It’s broader treatment coverage and excellent safety profile make it an attractive option for individuals seeking hair rejuvenation solutions.

More benefits of red light therapy for hair growth

We have explored various hair growth light therapy options, considering factors such as clinical trial effectiveness, practical application, cost, and safety. It becomes evident that combining LEDs with red light is the best light therapy for hair growth. Below are some of its key benefits:

Improve Greasy Scalp

Red light has been shown to reduce scalp inflammation and acne, relieving those with greasy scalps. By fostering a drier and healthier environment, red light therapy can help regulate sebum production, reducing excessive oiliness that often leads to a greasy scalp.

This, in turn, contributes to maintaining a clean and nourished scalp, which is essential for promoting optimal hair growth. Moreover, addressing scalp inflammation is crucial since it is linked to hair loss.

Enhance Oxygen Saturation

Red light therapy improves blood circulation, facilitating the delivery of oxygen and essential nutrients to the hair follicles. This heightened blood oxygen level and nutrient supply promote a conducive environment for hair follicle regeneration.

By ensuring adequate oxygenation, the hair roots receive the nourishment, they need to maintain their health and vitality, which is vital for promoting strong and resilient hair growth.

Nourish Hair Roots with Impressive Uniformity

Red and infrared light offers an impressive uniformity of over 80%, compared to traditional equipment emitting light with only 50% uniformity. This higher attribute ensures that photons cover the entire scalp effectively, nourishing the hair roots over a large area.

Consistent and even light distribution enhances the absorption of light energy, benefiting hair follicles throughout the scalp and supporting healthier hair growth.

Extend the Growth Phase

Hair follicles cycle through various phases, including the growth phase (anagen), transition phase (catagen), and resting phase (telogen). Red and near-infrared light stimulate the anagen phase and activate hair follicle cells, promoting an extended growth phase.

This extended growth phase results in longer and thicker hair growth before transitioning to the resting phase. Red light therapy supports hair thickness and density by encouraging hair follicles to stay in the growth phase for an extended period.

Top 5 At-Home Red Light Therapy Devices for Hair Growth

Scienlodic Red Light Hat

Imagine a versatile and convenient therapy that brings back the joy of running your fingers through thick, healthy hair. With the Scienlodic Hair Growth Hat, that dream is within reach!

The Scienlodic Hair Growth Hat’s ingenious design ensures it fits most head sizes, while its deformable shape ensures a snug and comfortable fit. The design of flexible electronic components enables them to withstand compression without breaking, making them ideal for use in various situations.

Imagine having the energy of not just one or two LED lights but a whopping 120 powerful LED lights working together to revive and stimulate your hair follicles! It’s like giving your hair a spa day with a full-on rejuvenation treatment.

The Scienlodic Hat is thoughtfully designed to target hair loss with gentleness, unlike cumbersome laser combs or messy shampoos. As you wear this cap, you feel the gentle caress of 660nm red light and 850nm infrared light working harmoniously to breathe new life into your hair follicles without any known side effects.


  • The combination of multiple pulses and light intensity is aimed at different degrees of hair loss and brain repair problems
  • Embrace the benefits of a multi-wavelength treatment that targets hair loss with precision and care
  • It’s a cost-effective solution.


Limited Styling Options


From $199.99 and comes with a 2-year warranty.

Hairmax LaserComb

The Hairmax LaserComb feels like a gentle massage for your scalp. This handheld device uses parting combs to distribute laser light energy to the scalp, and the wavelength is precisely set at 655 nm (+/-5%) to work its wonders

Simply run it through your hair, and it precisely targets those thinning areas. Plus, it’s FDA-cleared so you can trust it for effective results.


  • Hand-Held and Portable
  • It is an FDA-approved Class 3R lower-level laser therapy device backed by clinical evidence for its effectiveness in stimulating hair follicles.
  • The comb contains 9 or 12 lasers, allowing users to target specific thinning areas or cover the entire scalp for comprehensive treatment.


Using lasers without professional assistance can result in itchy scalps.


Ultima 9 Classic LaserComb for $199.00 with a 1-year warranty
Ultima 12 LaserComb for $399.00 with a 1-year warranty.

Capillus Laser Cap

The Capillus Laser Cap is a stylish and discreet solution. It looks like a regular baseball cap but with a secret power. Those 650 nm red light lasers work their magic, and you can feel your hair getting more robust with every use. It’s like wearing a confidence booster on your head. Wear it while doing errands or just chilling at home – super convenient.


  • Stylish and Discreet
  • Capillus offers different caps with varying laser energy output, catering to individual needs and preferences.
  • Pure Laser Light Sources


Capillus caps have a higher price range than other hair growth treatments.


Capillus offers different models, such as:

Capillus One S for a one-time payment of $934.15 or $28 per month with a 3-year warranty

CapillusPlus S1 for a one-time payment of $1,699.15 or $56 per month with a 3-year warranty

Capillus Pro S1 for a one-time payment of $2,999.00 or $84 per month with a 3-year warranty.

iRestore Laser Hair Growth System

The iRestore Laser Hair Growth System is like having your personal hair therapist! Pop on this cool-looking helmet, and 21 lasers and 261 LEDs get to work, stimulating your hair follicles.

It’s a home-use device, so no appointments are needed – enjoy that freedom! The best part? Improved blood circulation to your scalp, which you can feel. Your hair will thank you for this.


  • High Laser Intensity
  • The advanced ventilated design of iRestore systems ensures improved airflow and comfort during use.
  • The iRestore Essential and iRestore Professional offer options based on laser output and treatment times.


  • Some users may find the iRestore system in the higher price range for a hair growth device.
  • Helmets may not be as convenient for some users compared to handheld devices.


iRestore Essential is priced at $695, starting at $45/month with a 3-year warranty, while iRestore Professional is priced at $1,195, starting at $77/month with a 4-year warranty.

Theradome Laser Hair Growth Helmet

And last but not least, the Theradome Laser Hair Growth Helmet. The 680 nm red light hits your hair follicles just right, and you can feel your hair journey taking a positive turn. So easy to wear, and you will love the thought that it’s giving your hair exactly what it needs to thrive.


  • Unique Laser Diode Design
  • Optimal Efficiency and Comfort


Relatively Expensive.


Theradome EVO LH40 for $995 or payment starting from $58/month with a 1-year limited warranty

Theradome PRO LH80 for $695 or payment starting from $58/month with a 1-year limited warranty.

How Often Should Red Light Therapy be Used for Hair Growth

When harnessing the rejuvenating benefits of red light therapy for hair growth, finding the correct treatment dose is essential. Research [5]has shown that different treatment goals correspond to different therapeutic doses. Joint single-session Joule energy densities in the range of 2 to 10 J/cm² effectively treat superficial tissues like the skin and scalp follicles.

However, it’s crucial to understand that the treatment dose is not a one-size-fits-all standard. Each person’s biological resistance can vary, requiring a personalized approach to achieve optimal results.

According to studies, the best practice is, to begin with a low dose and gradually increase it based on individual needs and responses. Slowly adjusting the dosage from low to high allows for customization, ensuring that the therapy aligns with your unique situation.

Monitoring the actual effect over monthly intervals can provide valuable insights into the treatment’s progress, enabling you to make any necessary adjustments.


As we continue to explore the potential of red light therapy, its adaptability and versatility offer a beacon of hope for those seeking fuller and more vibrant hair.

Whether you choose the Scienlodic Red Light Therapy Hair Growth Hat for its portability and precise stimulation or opt for the Hairmax LaserComb with its FDA-cleared efficacy, each device offers unique benefits to cater to your hair growth needs.

By incorporating red light therapy into our hair care routines, we can embark on a transformative journey toward healthier, thicker, and more luscious locks.


  1. Avci P, Gupta GK, Clark J, Wikonkal N, Hamblin MR. Low-level laser (light) therapy (LLLT) for treatment of hair loss. Lasers Surg Med. 2014 Feb;46(2):144-51. doi: 10.1002/lsm.22170. Epub 2013 Aug 23. PMID: 23970445; PMCID: PMC3944668.
  2. Lesiak A, Bednarski IA, Narbutt J. Prospective 3-month study on the efficacy of UV-free blue light in mild psoriasis vulgaris treatment. Postepy Dermatol Alergol. 2021 Jun;38(3):446-449. doi: 10.5114/ada.2021.107931. Epub 2021 Jul 26. PMID: 34377126; PMCID: PMC8330862.
  3. Qiu, J., Yi, Y., Jiang, L. et al. Efficacy assessment for low-level laser therapy in the treatment of androgenetic alopecia: a real-world study on 1383 patients. Lasers Med Sci 37, 2589–2594 (2022). https://doi.org/10.1007/s10103-022-03520-4
  4. Avci P, Gupta A, Sadasivam M, Vecchio D, Pam Z, Pam N, Hamblin MR. Low-level laser (light) therapy (LLLT) in skin: stimulating, healing, restoring. Semin Cutan Med Surg. 2013 Mar;32(1):41-52. PMID: 24049929; PMCID: PMC4126803.
  5. Avci P, Gupta A, Sadasivam M, Vecchio D, Pam Z, Pam N, Hamblin MR. Low-level laser (light) therapy (LLLT) in skin: stimulating, healing, restoring. Semin Cutan Med Surg. 2013 Mar;32(1):41-52. PMID: 24049929; PMCID: PMC4126803.