How Does Red Light Therapy Work?

In an era where modern medicine continuously seeks innovative approaches to promote healing and overall well-being, one remarkable technique has emerged as a beacon of hope; Photobiomodulation, commonly known as Red Light Therapy or low-level light therapy (LLLT).

This non-invasive and low-risk therapy has captured the attention of researchers and health enthusiasts alike, promising a wide range of healing benefits for the human body. You may find yourself asking; “well, how does this work?” As the presence of this modality continues growing in attention both on and offline. We’re here to tell you more…

Understanding Photobiomodulation

Photobiomodulation (PBM) is a therapeutic approach that utilises specific wavelengths of light, typically in the Red and Near-Infrared spectrum, to stimulate biochemical processes within cells. This gentle and painless therapy has shown immense potential for healing and rejuvenating tissues at a cellular level.

The magic of Photobiomodulation occurs within the cellular powerhouses, known as mitochondria. Mitochondria are responsible for producing adenosine triphosphate (ATP), the primary energy currency of our cells. When cells receive Red or Near-Infrared light, the phenomenon known as cytochrome c oxidase activation takes place. This activation enhances ATP production, bolstering cellular energy and overall function. Because of its capacity to aid the rejuvenation of cells, it can make a powerful ally when it comes to wound healing. All living cells have potential to be treated by PBM, and it can help the body’s repair throughout all healing stages.

Is PBM a laser therapy?

PBM can be delivered by laser light technology as well as other light sources such as Light Emitting Diode (LED) and even broad-band light. Therefore, technically, it is no longer correct to refer to this modality under the generic term ‘laser’. Although both laser PBM and LED PBM utilise specific wavelengths of light to stimulate cellular processes to facilitate natural healing, there are key differences between the two in terms of risk to eyes and/or tissue. Laser therapy typically employs a more concentrated, focused, and coherent beam of light. Focused laser energy include high powered devices that were originally used for ablative surgical and precision medical procedures, such as laser eye surgery or hair removal while traditional laser PBM is generally known as low-level laser.

On the other hand, LED PBM employs a broader spectrum of light referred to as non-coherent light sources. This makes it less invasive and safer for general therapeutic use. Red Light Therapy is known for its gentle nature, making it suitable for a wide range of applications, including pain relief, skin rejuvenation, and neurological support.

Furthermore, the mechanisms of action differ slightly between high level laser which often relies on thermal effects, ablative in nature to target specific tissues or cells, whereas traditional low level PBM primarily stimulates cellular processes, such as increased ATP production without heat. This makes PBM well-suited for long-term application without the risk of damage or adverse effects.

LED PBM devices are perfect for home use, the light emitting diode technology spreads the light out, making it safer for use around eyes than the pin-point of light that laser delivers. No goggles or fancy technology is required when using PBM devices such as Photizo, they are fast acting, safe, handy for travel and easy to use whenever required.

The Power Of Light

Photobiomodulation is recently causing quite a stir in both holistic and scientific communities as significant evidence continues to display how it can aid a wide array of ailments in extraordinary ways. Here are just a few examples of what PBM is commonly used for:

  • Pain Relief and Inflammation Reduction

    Red light therapy has demonstrated remarkable efficacy in alleviating pain and reducing inflammation. By stimulating the release of endorphins, the body's natural painkillers, it may provide relief for chronic pain conditions like arthritis, fibromyalgia, and muscle soreness. Additionally, it modulates inflammatory responses, making it a valuable tool in managing conditions such as osteoarthritis and autoimmune diseases.

  • Skin Health and Wound Healing

    The potential for Red Light Therapy to rejuvenate the skin and accelerate wound healing is another exciting aspect of PBM. It stimulates and regulates collagen production, resulting in improved skin tone, reduced wrinkles, and enhanced elasticity. Moreover, it can aid in wound healing by increasing blood flow to damaged tissues and promoting the formation of new blood vessels.

  • Muscle Recovery and Performance Enhancement

    Athletes and fitness enthusiasts have also embraced Red Light Therapy for its ability to enhance muscle recovery and performance. By reducing muscle inflammation that occurs from intense or endurance exercise, it allows athletes to train harder and recover faster, potentially leading to improved athletic performance.

  • Neurological Benefits

    Emerging research suggests that Red Light Therapy may have positive effects on neurological conditions. It has shown promise in the treatment of traumatic brain injuries, stroke recovery, and neurodegenerative disorders like Alzheimer's and Parkinson's disease. The therapy's ability to enhance mitochondrial function and reduce oxidative stress may play a crucial role in preserving and restoring brain health.

  • Hair Growth and Hair Health

    For those grappling with hair loss or thinning, PBM may offer a non-invasive solution. By stimulating hair follicles and increasing blood flow to the scalp, it can promote hair regrowth and overall hair health.


Photobiomodulation is a revolutionary approach to healing and rejuvenation. By harnessing the power of light to stimulate cell functions, it offers incredible potential for proactively enhancing health and well-being. This versatile therapy is gaining popularity, with countless practitioners in the UK, including those working with animals, now recommending it to clients for managing and alleviating symptoms. It's also becoming a must-have addition to first aid kits around the globe.

As research in this field advances, we can anticipate even more exciting discoveries and applications for this gentle yet potent therapy. PBM serves as a shining example of how harnessing the healing power of nature, in this case, the power of light, can contribute to our quest for a healthier, happier life. So, as the science of Photobiomodulation continues to evolve, we can look forward to a brighter, more illuminated future for our overall well-being.

Article written by Liv Aires of Photizo UK

 

Find out more about how Photobiomodulation can help you by clicking the link below:

Previous
Previous

An integrated natural healthcare solution to re-balance Ruby, the Cockapoo

Next
Next

Online Photobiomodulation CPD courses for Human Health Practitioners and Animal Practitioners now available