Red Light Therapy

December 12, 2022


Red light therapy has been used to treat injuries, degeneration and various diseases. Years of research has shown that certain wavelengths of light within the red and infrared bands can be beneficial to living tissues.

Two Factors to Consider

light chart

There are two factors to optimize the benefits of red light therapy: the wavelength and dosage of light energy.

Some devices deliver red light in the range of 630-700 nanometers (nm). Near infrared light is between 800-900nm. Ideally, you want to include the best of both worlds by utilizing both types of light. This is because the combination of different wavelengths positively impacts the depth of penetration. The more penetration you get, the more tissues can be treated.

The scientific literature suggests that light in the mid-600nm range to high-800nm range is most effective. 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.


One key benefit of red light therapy is in its ability to generate vasodilation. Vasodilation is a widening of the blood vessels. When the blood vessels expand, more blood can be pumped through.

More blood flow also equates to more oxygen being delivered to the tissues. Oxygen is required by all cells for optimal health. Compromised the blood flow (and with that, the amount of oxygen being delivered to the body), it will eventually cause a problem.

  1. Cutting off the blood supply (and the subsequent oxygen supply) to the brain, it will lead to a stroke.
  2. If it happens to the heart, it leads to a heart attack.
  3. When this happens to the nerves that go down your legs, the nerves begin to shrivel up and die (like a house plant that you forgot to water for a few weeks).

Red light therapy generates the production of a powerful vasodilator called nitric oxide. Doing this helps get more oxygen into the tissues.

Mitochondrial Stimulation


The mitochondria are a part of the cells that creates energy. Anything that helps optimize mitochondria function results in being able to make more cellular energy. Red and infrared light stimulates the mitochondria. Accordingly, this stimulation is called photobiostimulation. This accelerates wound healing, reduces inflammation, and helps decrease pain.

If you have any questions about red light therapy, or would like to learn more, please call us: 412-595-7332