Nobel Prize Winning Science Behind Light Therapy

The 1998 Nobel Prize for Physiology or Medicine was awarded to three American scientists for their discoveries concerning “nitric oxide as a signalling molecule in the cardiovascular system”. Both infrared and red light trigger the release of nitric oxide from blood vessels and red blood cells. Nitric oxide causes local vasodilation that lasts several hours after the therapy session has ended. Vasodilation improves blood flow which lessens pain and helps nerves to begin to carry sensations again.

Vasodilation Increases Blood Flow

There are two main factors to maximize the benefits of light therapy: the wavelength and intensity of light energy. While most devices have red lights, our devices contain both red and infrared lights. During treatment, the photons of light trigger the release of nitric oxide from hemoglobin and endothelial cells (the lining of blood vessels). Nitric oxide is a signaling molecule that relaxes smooth muscle cells found in the arteries, veins, and lymph vessels. When these muscles relax, the vessels dilate, thus allowing increased blood flow. Many scientific studies have shown that light therapy is effective in improving nerve health. It works by increasing ATP (adenosine triphosphate -cellular energy) synthesis in the mitochondria, activating the electron transport system, and many other biochemical and biophysical reactions in the tissue.

Infrared light therapy to alleviate pain and improve circulation is based on decades of research that found that certain wavelengths of light within the red and infrared bands were very beneficial to living tissue.


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Light therapy devices are not intended to diagnose, treat, cure or prevent any disease. The information contained on this website is for educational purposes only. This medical device is not intended to be a substitute for medical advice. Please consult your Doctor for any and all medical advice.  

Disclaimer: Statements contained herein have not been evaluated by the FDA.