What is Light Therapy?

What is Light Therapy?

Low-level light therapy (LLLT) stimulates the process called photobiomodulation (PBM). In scientific studies, PBM has been shown to trigger the release of nitric oxide (NO). NO causes local vasodilation which brings about an increase in local circulation, bringing increased oxygen and glucose to tissue. The release of NO by the mitochondria unlocks the aerobic metabolism of the mitochondria, allowing them to produce Adenosine 
Tri-Phosphate (ATP). ATP is the major energy currency of the cell.

What is the difference between red, blue and near-infrared (NIR) light?

Each wavelength penetrates to a different level of tissue. Inlight Medical’s pads include two to three wavelengths on each pad with respective penetration depths as follows:

Blue & Near-Infrared (NIR) Light: Increases circulation and reduces pain. Blue (465nm) penetrates—3mm. NIR (850nm) which then penetrates—100mm. This provides a superficial and deep light wavelength penetration.


Red & Near-Infrared (NIR) Light: Increases circulation and reduces pain. Red (629nm) penetrates—10mm. NIR (850nm) penetrates—100mm. This provides a mid and deep light wavelength penetration.


Various combinations of these three lights create the InLight Medical low-level Polychromatic Light Therapy system. Research has shown it’s beneficial to utilize the power of multiple wavelengths (polychromatic) of light to stimulate the body with photobiomodulation and warmth.


What is “Polychromatic” Light Therapy?

Polychromatic light therapy is the simultaneous use of more than one light wavelength, or color. InLight Medical Systems™ use two or more light wavelengths in every pad.

What is Progressive Multi-Pulse TM Technology and how is it different from other systems?

InLight systems are engineered to automatically pulse light through seven different frequencies (Hz) during each 20-minute session when placed on setting A, B, or C to provide photons to the body in a variety of cycles.

What has Light Therapy been shown to do?

Increase Circulation: Circulation is increased by the release of nitric oxide which causes both local vasodilatation and the formation of new capillaries. Increased circulation may result in carrying more oxygen and glucose to the tissue.


Reduce Pain: LLLT has been shown in scientific studies to release nitric oxide causing local vasodilation which improves the oxygenation of ischemic tissue to reduce pain. It also triggers the nucleus of the cell in a process called photobiomodulation, to manufacture various natural, cellular substances, including anti-inflammatories, which may also reduce pain.

Stimulate the Production of Adenosine Triphosphate (ATP):  ATP is the major energy currency in all cells which enables them to function. ATP provides the chemical energy that supports most chemical reactions within the cell. The release of NO (an inhibitor in the cell) by LLLT unlocks the aerobic metabolism of our mitochondria allowing them to produce more ATP which allows the cell to function more freely without the NO inhibition to mitochondria.


Why are there only three wavelengths used?

While the sun’s light is “full spectrum” and essential for life, the bulk of current medical research is focused on the wide range of wavelengths within the red, blue and infrared spectrums.

Why are some of the lights on the pads dark?

The “dark” rows on InLight devices are the rows of near-infrared diodes. Near-infrared wavelengths are just outside of the human visible color spectrum. InLight has included an near infrared spectrum emission tester on the top of the 6/Port controller. By placing a near infrared LED above the circular testing dot to the right of the LCD screen of the 6/Port, the tester will provide feedback by means of illuminating a green LED on the back of the controller if it senses near infrared light. Some new digital cameras may also pick up near infrared wavelengths and display them as lighted.

Conditions Light Therapy Have 
Been Used For:


  • Joint pain

  • Inflammation and swelling

  • Bone fractures

  • Bruises

  • Burns

  • Non-healing wounds

  • Peripheral neuropathy

  • Tight muscles

  • Mood disorders

  • Skin conditions

  • Migraines

  • Alzheimers

  • MS

  • PTSD

  • Traumatic brain injury

  • Arthritis

  • Anti-aging

  • Fibromyalgia

  • Sleep issues

  • Surgery recovery

  • Autoimmune disorders

  • Sciatica

1762 Hoffman Dr.

Loveland, CO 80538