How Often To Use Red Light Therapy For Hair Growth

Red light therapy (RLT) has emerged as a revolutionary treatment in the realm of medical science, offering benefits ranging from improved skin health to accelerated wound healing. Among its various applications, RLT has gained significant attention for its potential to enhance hair growth.

This guide explores the optimal frequency of the red light therapy treatment to maximize its benefits for hair regeneration, providing a deep dive into how it works, and what users can expect from incorporating this treatment into their hair care regimen.

The effectiveness of RLT is not merely anecdotal; it is backed by scientific research that underscores its capability to stimulate hair follicles, thereby promoting higher hair growth increase in density and strength.

However, the key to harnessing the full potential of red light therapy lies in understanding the correct usage frequency, which varies based on individual conditions and specific devices. This article will furnish you with comprehensive insights into how red light therapy work really is, guiding you through the process of using it effectively for hair growth.

Understanding Red Light Therapy

What is Red Light Therapy?

An image of KOZE S Series

Red light therapy (RLT) involves the use of low wavelength red light to penetrate deep into the hair follicle cells and skin layers, reaching the cells and tissues beneath. This low level laser therapy utilizes wavelengths typically ranging from 630 to 670 nanometers, which are believed to trigger biological processes that aid in cellular repair and regeneration.

The mechanism behind how red light therapy works is its ability to stimulate mitochondria, the energy factories within our cells, encouraging them to produce more adenosine triphosphate (ATP). By increasing mitochondrial activity and ATP production, RLT provides the necessary resources for hair follicles to remain in the growth phase longer, significantly enhancing their cellular energy metabolism and regeneration, which are crucial for various health benefits, including hair growth.

Benefits of Red Light Therapy for Hair

The application of RLT for hair growth is supported by numerous studies that highlight its ability to treat hair loss:

  • Stimulate Hair Follicles: RLT can increase blood flow to the scalp, which provides more nutrients and oxygen to the hair follicles, encouraging hair growth.

  • Reduce Inflammation: It has anti-inflammatory properties that can help in treating scalp conditions such as psoriasis or folliculitis, which can inhibit hair growth.

  • Increase Hair Density and Thickness: Regular use of RLT has been shown to not only help in growing new hair but also in thickening existing hair, thereby improving overall hair density.

Additionally, RLT is particularly effective in treating male pattern baldness by stimulating hair follicles and promoting more hair follicle density, addressing one of the most common forms of hair loss among men.

Case Study Highlight:

an image of a man using KOZE X Series (Black)

Participants who used RLT for hair growth experienced a substantial increase in hair density compared to those who did not use the therapy for hair loss, according to a study published in the Journal of Cosmetic and Laser Therapy. This study reinforces the effectiveness of RLT as a viable treatment option for hair loss.

Red light therapy offers a non-invasive, safe, and effective method to not only maintain healthy hair but also to combat hair loss. It’s a promising solution for those looking for unwanted facial hair growth or for alternatives to traditional hair growth methods such as topical treatments or surgical options for advanced hair loss.

Both men and women can stimulate hair growth by combining visible red light, which is between 630 and 660 nm, with near infrared light, which is at 850 nm.

How Often Should You Use Red Light Therapy for Hair Growth?

Recommended Frequency of RLT

KOZE S Series

Determining the optimal frequency for using red light therapy is crucial for achieving the best results in hair growth. The general recommendation for RLT usage varies slightly depending on the specific device and individual hair growth needs, but there are some common guidelines:

  • Initial Phase: For those starting out with red light therapy, it is typically recommended to use the device every other day for about 15-20 minutes per session. This frequent initial usage helps to kick-start the cellular processes that contribute to hair growth.

  • Maintenance Phase: Once visible improvements are noticed, usually after about 3–4 months, the frequency can be reduced to 2-3 times a week to maintain the results and continue stimulating the hair follicles.

It's important to follow the manufacturer's instructions regarding the duration and frequency of use, as overuse can lead to diminished results and underuse might not be effective.

Factors Influencing Therapy Frequency

The frequency of red light therapy sessions can be influenced by several factors that need to be considered for tailored red light treatment, plans:

  • Individual Hair Growth Goals: Those with more significant hair loss might need more frequent sessions initially compared to those using RLT for general hair health maintenance.

  • Hair and Scalp Condition: Individuals with conditions like scalp inflammation or alopecia may require adjustments in their treatment frequency.

  • Type of RLT Device Used: Different devices may emit light at varying intensities, which can affect how often they should be used. Handheld devices might require longer or more frequent use compared to larger, more powerful units.

Pro Tip: Keep a hair growth journal to track your progress with RLT. Note down the frequency of your sessions along with any changes in hair thickness and overall scalp health. This can help you optimize your treatment schedule based on real results.

Koze Health: Best Practices for Using Red Light Therapy

Choosing the Right Device

 An image of KOZE X Series (White)

Selecting the right red light therapy (RLT) device is crucial for maximizing the effectiveness of your treatment, especially does red light therapy, when targeting hair growth. Here’s how you can make an informed decision with Koze Health:

Types of Devices: Red light therapy devices vary in form to cater to different needs and preferences:

  • Handheld Units: These are compact and ideal for targeted treatment of specific areas. They require manual operation, which allows for precise control but may be less convenient for treating larger areas.

  • Caps and Helmets: Designed to cover the entire scalp, these devices provide an automated, hands-free treatment. They are perfect for comprehensive scalp health management.

  • Overhead Panels: Best suited for both salon and home use, these panels allow for sessions that involve no direct contact, making them convenient for regular use without much setup.

  • Wavelength and Power: It is important to choose devices that operate within the effective therapeutic range of 630–670 nanometers. The power output of the device should be strong enough to penetrate the scalp deeply enough to stimulate the hair follicles, yet safe enough to use regularly without risk of tissue damage.

FDA Approval: Safety and efficacy are paramount when selecting an RLT device. Opt for devices that are FDA-approved or meet similar regulatory standards. This ensures that the device you are using adheres to strict health and safety guidelines, which is a commitment of Koze Health in all its products.

By considering these factors, you can choose a red light therapy device that not only suits your specific needs and hair growth cycle but also ensures safe and effective treatment. Koze Health offers a range of RLT devices that meet these criteria, helping you embark on your journey to improved hair growth with confidence.

Preparing for a Red Light Therapy Session

To get the most out of each RLT session, follow these preparation tips:

1. Cleanse Your Scalp: Start with a clean scalp to ensure maximum light penetration. Remove any products that could block the light.

2. Dry Hair: Ensure your hair is dry, as wet hair can reflect infrared light back, reducing its effectiveness.

3. Protect Your Eyes: Although RLT is generally safe, it’s advisable to wear protective eyewear, especially with devices that emit strong light.

During the Session

Maximize the benefits of your RLT sessions by adhering to these practices:

  • Correct Positioning: Position the device so that the light covers the target areas of the scalp evenly. For helmets and caps, ensure they fit snugly.

  • Session Duration: Typically, a session should last between 15 to 20 minutes. Adhering to recommended durations helps achieve optimal results without overexposure.

  • Consistency is key: Regular and consistent treatment sessions are crucial. Skipping sessions can delay the benefits of RLT.

What to Expect After Starting Red Light Therapy

Short-term and Long-term Effects

When beginning red light therapy treatments for hair growth, it's important to manage expectations and understand both the short-term sensations and the long-term adverse effects you might experience:

  • Short-term Sensations: During and immediately after RLT sessions, you might not feel much — RLT does not produce heat like some other light therapies. Some users report a mild warming sensation or a tingling in the scalp, which is normal and indicates increased blood flow to the area.

  • Long-term Effects: The effects of RLT on hair growth typically become noticeable after consistent use over several months. Users often observe:

  • Increased Hair Thickness: The hair strands may become thicker and more robust as a result of enhanced follicle activity.

  • Improved Hair Density: Over time, areas of thinning hair may begin to fill in, leading to a fuller appearance.

  • Healthier Scalp: Improvements in scalp health due to reduced inflammation and increased blood circulation.

Troubleshooting Common Issues

Not everyone may experience positive results immediately, and some may need to adjust their approach.

Here are some tips for troubleshooting common issues with RLT:

  • Lack of Visible Results: If you do not see improvements after three to four months, consider increasing the frequency of sessions or checking if the device’s intensity is adequate.

  • Adjusting Frequency and Duration: Depending on your initial results, you might need to adjust how often and how long you use your RLT device. Consulting with a dermatologist or a specialist in hair care can provide personalized guidance.

Table: Expected Timeline for RLT Hair Growth Results

Time Period Expected Results
1-3 Months Initial signs of increased hair vitality
3-6 Months Visible improvements in hair thickness
6+ Months Significant hair regrowth and density

Complementing RLT with Other Hair Growth Strategies

Nutritional Support for Hair Growth

A holistic approach to stimulating hair growth includes not just treatments like red light therapy, but also ensuring your body receives the right nutrients. Here’s how you can support your hair's growth from within:

Key Vitamins and Nutrients:

  • Vitamin C: is essential for collagen production, which helps strengthen the hair shaft.

  • Biotin (Vitamin B7): Promotes healthier hair growth by improving the body’s keratin infrastructure.

  • Iron: An iron deficiency can lead to hair loss. Ensuring adequate iron intake helps improve hair health.

  • Zinc: Plays a role in hair tissue growth and repair. It also helps keep the oil glands around the follicles working properly.

Recommended Dietary Changes:

  • Incorporate a balanced diet rich in proteins, vitamins, and minerals.

  • Include foods like salmon, berries, spinach, and nuts, which are known for their hair health benefits.

Additional Hair Growth Treatments

Combining RLT with other hair growth treatments can enhance overall results:

Topical Treatments:

  • Minoxidil: is an over-the-counter topical treatment known to stimulate hair growth and is often used in conjunction with RLT.

  • Natural Oils: such as peppermint oil and rosemary oil, have been shown to promote hair growth when applied to the scalp.


  • Hair growth supplements that contain a mix of vitamins, minerals, and other nutrients can support the effects of RLT.

Other Therapies:


Incorporating red light therapy (RLT) into your hair care routine can be a game-changer in promoting hair growth and overall scalp health. Koze Health offers a range of RLT devices that are designed to meet your specific needs, whether you prefer targeted treatment, low level red light treatments, therapy panel, with a handheld unit or comprehensive coverage with a cap or helmet.

Choosing the right device is just the first step. Consistency and adherence to best practices are key to maximizing the benefits of RLT for hair growth. By following the guidelines provided and integrating RLT into a holistic approach grow hair, that includes proper nutrition and other complementary treatments, you can achieve healthier, fuller hair.

With Koze Health's FDA-approved RLT devices, you can take hair loss treatments embark on your journey to stronger, more vibrant hair with confidence. Start your RLT treatment today and experience the difference it can make in your hair growth journey.

For more information on Koze Health's range of RLT devices and tips for maximizing their benefits, continue exploring our blog. Subscribe to stay updated on the latest trends in hair care and RLT technology, and take the first step towards healthier, happier hair today!