What Wavelength Is Red Light Therapy?

Joint pain can be a significant barrier to living a full and active life. Whether it's arthritis, tendinitis, or general aches from wear and tear, you may be searching for a solution that works. Red light therapy (RLT) has gained popularity as a non-invasive treatment for joint pain, but understanding the science behind it, particularly the wavelengths, can help you make an informed decision.

At Ortho Joint Relief, we understand the discomfort and challenges joint pain can bring to your daily life. Our mission is to provide professional advice and solutions that offer real relief, backed by our expertise and commitment to quality. If you're learning how to do red light therapy at home, this article will walk you through what wavelength red light therapy uses and how it can help you find relief, as well as what chiropractor-approved devices we have available. For those looking into red light therapy for back pain, wrist pain, foot pain – or any other kind of joint pain – we’re here to help.

So, let’s get started.

What Is Red Light Therapy?

Red light therapy is a non-invasive treatment that uses specific wavelengths of light to penetrate the skin and promote healing in the body's tissues. The therapy is commonly used for joint pain, skin rejuvenation, and even wound healing. It works by stimulating cellular activity and increasing energy production within the cells, which can help reduce inflammation and pain, especially in the joints.

This therapy is simple and painless. By using a device that emits red and near-infrared (NIR) light, you can target the areas where you feel discomfort. As more studies support its effectiveness, RLT is becoming a go-to solution for those looking to alleviate joint pain.

What Wavelength Is Used in Red Light Therapy?

Red light therapy uses wavelengths in the range of 630nm to 850nm. These wavelengths are found within both the visible red light spectrum and the near-infrared light spectrum. But what do these numbers mean, and why do they matter?

Visible Red Light (630-660nm)

What Is Visible Red Light?

Visible red light refers to wavelengths between 630nm and 660nm, which fall within the red spectrum of visible light. This range is easily absorbed by the surface layers of the skin, making it highly effective for surface-level treatments.

How Does It Work for Joint Pain?

This wavelength penetrates just a few millimetres into the skin, making it ideal for addressing superficial conditions like mild inflammation and shallow joint discomfort. Visible red light is particularly useful for targeting areas of swelling or tenderness caused by joint issues, such as arthritis in the fingers or tendinitis. By boosting cellular repair and reducing surface inflammation, it can help improve mobility and reduce discomfort in the joints that are close to the skin’s surface.

Near-Infrared Light (800-850nm)

What Is Near-Infrared Light?

Near-infrared (NIR) light falls within the 800nm to 850nm range and is not visible to the naked eye. However, its deeper tissue penetration allows it to reach muscles, joints, and even bones, making it a powerful tool for treating more severe or chronic pain.

How Does It Work for Joint Pain?

NIR light penetrates deeper into the body, making it ideal for treating joint pain and inflammation in larger or deeper joints, such as knees, hips, and shoulders. This wavelength stimulates the body's natural healing processes by increasing cellular energy, improving circulation, and reducing oxidative stress. 

By reaching deeper into the tissues, NIR light can address the root causes of chronic joint pain, promoting long-term healing and reducing discomfort associated with more advanced joint conditions like arthritis and injury recovery.

Red light therapy often uses a combination of both red light and near-infrared light to address pain both at the surface and deeper within the body.

How Does Wavelength Affect Red Light Therapy’s Effectiveness?

The effectiveness of red light therapy depends on how deeply the light penetrates the body. Shorter wavelengths, like 630nm, work well for treating surface-level conditions, while longer wavelengths, such as 850nm, reach deeper into tissues and joints. For joint pain, especially conditions like arthritis or tendinitis, deeper penetration is important. Near-infrared light can access painful areas more effectively, helping to reduce inflammation and promote healing.

What Is the Best Wavelength for Joint Pain Relief?

When it comes to joint pain, near-infrared light, particularly around 850nm, is considered the most effective wavelength. This light can penetrate deep into muscles and joints, stimulating the body’s natural healing processes. Research has shown that NIR light therapy can help reduce pain, increase joint mobility, and even improve circulation.

In cases of more superficial pain, such as arthritis in the hands, a combination of both red light (630-660nm) and NIR can be beneficial. The dual-action approach ensures that the surface and deeper layers of the joint receive therapeutic light.

Can Multiple Wavelengths Be Combined for Joint Relief?

Yes, many red light therapy devices combine both red light and near-infrared wavelengths to provide comprehensive relief. For example, devices that target both the skin's surface and deeper tissues offer a more complete treatment. This combination is particularly helpful if you have joint pain alongside inflammation or soreness in nearby muscles.

How Does Near-Infrared Red Light Therapy Help with Joint Pain?

Red light therapy works by stimulating the mitochondria, the energy-producing parts of your cells. When the red or near-infrared light reaches your joint tissues, it increases the production of adenosine triphosphate (ATP), boosting cellular energy and promoting faster healing. Here's how it helps:

• Reduces Inflammation – Joint pain is often linked to inflammation, and red light therapy helps to reduce this by improving blood flow to the affected area.
• Increases Circulation – Better circulation means more oxygen and nutrients are delivered to the joint, speeding up the healing process.
• Promotes Tissue Repair – Red light therapy stimulates cellular regeneration, helping to repair damage from chronic conditions like arthritis or recent injuries.

How Long Does It Take to Feel Relief from Red Light Therapy?

Relief from joint pain using red light therapy can vary from person to person. Some may notice improvements after just a few sessions, while others may require several weeks of consistent use. Typically, users should see noticeable results after 2–4 weeks of regular treatments. Be sure to consider if the wavelength used in the red light therapy is the right one for you.

Consistency is key—sessions should be carried out several times a week. However, always consult a healthcare professional to ensure the treatment meets your specific needs and will be safe for you.

Is Red Light Therapy Safe for Joint Pain?

Yes, red light therapy is generally considered safe when used appropriately, even at the higher, near-infrared wavelengths. It is a non-invasive treatment with minimal side effects compared to more invasive procedures like surgery or steroid injections. However, it’s important to follow safety guidelines, including using the right device for your needs.

Note: Always seek advice from a healthcare professional before starting any new treatment, including red light therapy. This ensures that the therapy is appropriate for your specific condition and doesn’t interfere with any other treatments you may be receiving.

Common Questions About Red Light Therapy Wavelengths for Joint Relief

What Is the Difference Between Red Light and Infrared Light?

The primary difference is how deeply the light penetrates your body. Red light, which is visible to the eye, typically affects the skin and shallow tissues, while near-infrared light, which is invisible, penetrates deeper tissues like muscles and joints. Both are effective for joint pain, but near-infrared light is better for targeting deep inflammation and tissue damage.

How Deep Does Red Light Penetrate into the Joints?

Red light typically penetrates about 2–3 millimetres, making it effective for surface-level issues. In contrast, near-infrared light can penetrate up to 5 centimetres into the skin, allowing it to reach deeper joints and muscles.

Can Red Light Therapy Replace Other Treatments for Joint Pain?

While red light therapy is a promising treatment, it should be seen as a complementary therapy, not a replacement for other medical treatments. It works best when used in conjunction with physical therapy, medications, or other treatments recommended by your doctor.

How Many Sessions of Red Light Therapy Are Needed for Joint Pain Relief?

For joint pain relief, it’s common to require 10–15 sessions over the course of several weeks. The exact number will depend on the severity of your pain and how your body responds to treatment.

One of the key benefits of red light therapy is its ability to support long-term joint health. Regular sessions can help prevent future joint pain by reducing inflammation, promoting flexibility, and improving circulation. Over time, these effects can lead to better mobility, reduced stiffness, and a lower risk of injury.

How to Choose the Right Red Light Therapy Device for Joint Pain

When selecting a red light therapy device for joint pain, it's important to consider the wavelength, power output, and specific features that match your needs. Here are a few options that may work for you:

Infrared Light Therapy Device (Flashlight)

This portable and lightweight device uses wavelengths of 630nm, 660nm, and 850nm to target specific areas of pain. Ideal for spot treatment, it's perfect for addressing joint pain in small areas such as knees or elbows. Its compact design makes it easy to use at home or on the go, allowing for targeted relief where you need it most.

Learn more about the Infrared Light Therapy Flashlight here.

Red Light Therapy Glove

Approved by physiotherapists, this glove is designed specifically for wrist, hand, and finger pain relief. It’s equipped with safety shut-offs and multiple timing modes to ensure effective and safe use. This glove is an excellent option for individuals suffering from arthritis, carpal tunnel syndrome, or general hand discomfort. Its design provides comfort while delivering therapeutic light directly to your joints.

Learn more about the Red Light Therapy Glove here.

Red Light Therapy Slippers

These slippers are perfect for treating foot pain, utilising both red and near-infrared light to alleviate aches, numbness, and inflammation. With two light therapy modes—regular lighting and pulse mode—the slippers offer versatile pain relief for the feet. The combination of wavelengths promotes circulation and relaxation, making them a convenient option for those suffering from foot pain or discomfort.

Learn more about the Red Light Therapy Slippers here.

Red Light Therapy Belt

This professional-grade belt provides targeted back pain relief using both 660nm and 850nm wavelengths. Its customisable modes and frequencies allow you to address a range of issues, from wound healing to inflammation reduction and general joint pain relief. The lightweight and breathable design ensures comfort during use, making it ideal for treating arthritis and back pain, and even supporting skin rejuvenation.

Learn more about the Red Light Therapy Belt here.

Always consult a healthcare professional before selecting a device, especially if you have a pre-existing condition or are taking other treatments.

Start Your Journey Towards Joint Relief Today

Red light therapy offers an effective, at-home way to manage joint pain, improving cellular repair and reducing the underlying inflammation. Whether you're dealing with arthritis, tendinitis, or general aches, this treatment could be the solution you’ve been looking for. 

Ortho Joint Relief offers a range of red light therapy devices designed to provide targeted, chiropractor-approved relief for your joint pain. With Free Next Day UK Delivery and a Risk-Free 30-Day Return, you can try it for yourself and take the first step toward a pain-free life.

DISCLAIMER: The information provided in this article is intended for general informational purposes only and should not be construed as medical advice, diagnosis, or treatment. The products and methods mentioned are not a substitute for professional medical advice from a trained healthcare specialist. Always seek the guidance of your doctor or other qualified health professional with any questions you may have regarding your health or a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website. Use of the information and products discussed is at your own risk.