How Does Red Light Therapy Work?

Red light therapy (RLT) uses red low-level wavelengths of visible light on the skin and body which can result in many different benefits, including temporary relaxation of muscles, temporary relief from muscle spasms, etc.

Decades of research have found that certain wavelengths of light within the red and infrared bands can be beneficial to living tissue.

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Light therapy uses red and infrared light.

The light triggers 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.

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Vasodilation significantly improves blood flow.

Improving blood flow promotes positive change in patients, lessens pain and helps nerves to begin to carry sensations again.

Infrared Light Energy

Nitric oxide is released from hemoglobin and endothelial cells. 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 circulation.

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Light Therapy works!

Healthlight patients have finally found relief.

There are two main factors to maximize the benefits of light therapy:

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There are two main factors to maximize the benefits of light therapy: the wavelength and dosage of light energy. Most devices deliver red light between 630-700nm. Sometimes, near infrared light is included typically between 800-900nm. HealthLight provides both types of light because the combination of different wavelengths positively impacts the depth of penetration.

The bulk of clinical literature suggests that light in the mid-600nm range to high-800nm range is most effective. That is because these wavelengths have the greatest effect on the cellular respiration process.

The amount of energy delivered during the treatment is measured in joules. There needs to be sufficient energy transmitted from the red and infrared LEDs during treatment to achieve an adequate dosage. The amount of joules delivered from our pads achieves this goal.

HealthLight devices bring relief of muscle, joint aches, and stiffness.

See how light therapy can cause a cascade of positive temporary effects within living tissue.

Light therapy is backed by years of science

In 1993, Duke University researchers discovered the benefits of red light therapy. In 1998, three American physiologists won the Nobel Prize for discovering that nitric oxide causes the blood vessels to dilate. This effect can be seen when a patient with angina takes nitroglycerin. The blood vessels dilate and reduce the angina. However, nitric oxide must be taken by mouth and reach the heart systemically via the blood flow.

Because near-infrared light can produce nitric oxide locally wherever the lights are applied on the body, it causes increased blood flow and reduced pain.

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Trusted by professionals

Leading Bloodflow Researcher

Dr. Tom Burke spent years at the University of Colorado researching the physiology behind light therapy.

Watch this video to learn about some of the profound effects on the body.

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