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Does red light therapy help immune system?

We all know how important it is to have a strong immune system, especially when infectious diseases are so prevalent. Your immune system is your body’s defenses against bacteria, viruses, and other invaders that can make you sick. But is there a way to boost your immunity naturally? Emerging research suggests that red light therapy may have the same effect of boosting the immune system.

red light therapy immune system

Understanding Your Immune System

To understand if and how red light improves the immune system, it is important to first understand what the immune system is and what it does.

What is the Immune System?

The immune system is a complex network of cells, tissues, and organs that work together to protect the body from infection and disease. Key components of the immune system include:

  • White blood cells like lymphocytes, macrophages, neutrophils, etc. that detect and destroy foreign invaders.
  • Lymph nodes, spleen, bone marrow, and other tissues that produce immune cells.
  • Skin and mucous membranes that act as physical barriers.
  • Antibodies produced by plasma cells to mark pathogens for destruction.
  • Cytokines and other signaling molecules that coordinate immune responses.

The immune system is constantly working to protect the body from infection. When an infection occurs, the immune system responds by sending white blood cells to the site of the infection. The white blood cells then attack the invading bacteria or viruses. The immune system also produces antibodies to protect the body from future infections.

Immune system function and influence

The immune system is a complex system that plays a vital role in keeping the body healthy. The immune system does this by:

  • Recognizing and destroying harmful substances, such as bacteria and viruses.
  • Preventing the growth of cancer cells.
  • Repairing damaged tissue.
  • Preventing allergies and autoimmune diseases.

Understanding Your Immune System

The immune system is influenced by a variety of factors, including:

  • Age: The immune system is not fully developed in infants and young children. This is why they are more susceptible to infection than adults.
  • Diet: A healthy diet is essential for a healthy immune system. Eating a diet rich in fruits, vegetables, and whole grains can help to boost the immune system.
  • Exercise: Exercise can help to strengthen the immune system. Regular exercise can help to reduce inflammation and improve the body’s ability to fight off infection.
  • Stress: Stress can weaken the immune system. Chronic stress can lead to a number of health problems, including increased susceptibility to infection.
  • Sleep: Getting enough sleep is essential for a healthy immune system. Sleep helps to repair the body and restore energy.
  • Smoking: Smoking can damage the immune system. Smoking cigarettes can suppress the immune system and make it more difficult for the body to fight off infection.
  • Alcohol: Alcohol can also damage the immune system. Drinking too much alcohol can weaken the immune system and make it more difficult for the body to fight off infection.

What is red light therapy?

Red light therapy, also known as photobiomodulation therapy, is a non-invasive treatment that uses low-level red and near-infrared light to stimulate cellular energy production. This, in turn, can help to boost immune function and promote overall health.

How Red Light Therapy Boosts the Immune System?

So, how exactly does red light therapy boost the immune system? There are several mechanisms by which this innovative treatment can have a positive impact on immune function:

1. Increased production of immune cells: Red light therapy has been shown to increase the production of immune cells, such as lymphocytes and monocytes, which play a key role in identifying and destroying harmful invaders.

2. Reduced inflammation: Chronic inflammation can weaken the immune system and make it more difficult for the body to fight off infections and diseases. Red light therapy has been found to reduce inflammation in a variety of conditions, promoting a healthier immune response.

3. Improved circulation: Red light therapy can help to improve circulation by increasing the production of nitric oxide, a molecule that helps to dilate blood vessels and improve blood flow. This, in turn, can help to deliver more oxygen and nutrients to the cells of the immune system, promoting better overall function.

4. Enhanced cellular energy production: Red light therapy stimulates cellular energy production, which can help to support the energy-intensive processe.

Does Red Light Therapy Boost Your Immune System Really Work?

Of course, the benefits of red light therapy on immune system function are supported by a growing body of scientific research. For example, Takamuda research has shown that red light therapy can act on immune system cells in a variety of ways, thereby activating the irradiated cells to a higher level of activity[1]. Another 2014 study found that red light therapy helped reduce the presence of IL-20, an important inflammatory cytokine, and thereby alleviate rheumatoid arthritis.[2]


Overall, the immune-boosting benefits of red light therapy make it an appealing option for anyone looking to support their overall health. Take a look at RedDot LED family of red light therapy devices which are available in an assortment of sizes and price points. Red light therapy can greatly enhance your health and quality of life in just minutes a day.


[1]Takamuda K. Possible effects of the laser in immunology. Keio J Med. 1993. 24(4): 180-182.

[2]Asayo Imaoka, Lin Zhang, et al. Reduction of IL-20 Expression in Rheumatoid Arthritis by Linear Polarized Infrared Light Irradiation. Laser Ther. 2014 Jul 1; 23(2): 109–114.

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