How Laser Therapy Works

Studies have shown that when tissue cultures are irradiated by Lasers, enzymes within cells absorb energy from laser light. Visible (red) light and Near Infrared (NIR) are absorbed within the mitochondria and the cell membrane. This produces higher ATP levels and boosts DNA production, leading to an increase in cellular health and energy. When applied as treatment, therefore, Lasers have been shown to reduce pain and inflammation as well as stimulate nerve regeneration, muscle relaxation and immune system response. Lasers have no effect on normal tissues, as photons of light are only absorbed and utilized by the cells that need them.

All light is composed of photons. Photons are small packets of light energy—in the form of waves— with a defined wavelength and frequency. Photon energy is able to more effectively penetrate the skin and underlying structures, therefore accelerating the healing process. Light travels at a constant speed and oscillates up and down as it moves forward. However, all light is not the same. It is measured in wavelengths, with each wavelength of light representing a different color of the spectrum. The number of oscillations per second represents the frequency of each wavelength; shorter waves have a greater frequency than longer waves. Laser energy is coherent (well-ordered photons), monochromatic (single-color) light energy. When produced as a narrow, bright beam. Laser light holds its intensity until it is absorbed by a medium (the body). When applied to an organism, Laser light, tuned to specific wavelengths and frequencies, stimulates metabolic processes at the cellular level.

Summary of the Photochemical Process:


Absorbed in Mitochondria and Cell Membrane within cytochromes and porphyrins

Singlet Oxygen is Produced

Changes in Membrane Permeability

ATP Synthesized and DNA Produced

Increase in Cell Metabolism from a Depressed Rate to a Normal Level

Selective Bio-Stimulatory Effect on Impaired Cells
(note cells and tissues functioning normally are not affected)

The cell equilibrium, altered by the pathologic process, are restored. Inflammation is reduced and the analgesic response is very fast.
Pressure waves stimulate the lymph draining system in deep layers. The rapid resorption of inflammation mediators and leaked liquids is achieved.
Circulation is stimulated: more oxygen and nutrients can reach the suffering structures.