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How does laser therapy work?

  • mervileinonen
  • Nov 11, 2021
  • 1 min read

Updated: Mar 14, 2025

Our customers often ask us to explain in simple terms what laser therapy is and how laser light helps speed up healing, relieve pain, and enhance the efficiency of muscle care. In this article, I take up this challenge and answer these questions as clearly as possible.


Laser therapy or biomodulation: The energy of laser light stimulates the cell.
Laser therapy or biomodulation: The energy of laser light stimulates the cell.

First of all, laser light is electromagnetic radiation – just like any other light. The light, in turn, consists of photons, or light particles, that carry energy. Just like plants know how to harness the energy of the sun for photosynthesis, the body knows how to harness the energy of laser light to repair damaged cells.


When you give laser therapy, you stimulate the cells — more specifically, the mitochondria in the cells that are responsible for the cells’ energy metabolism. In a damaged cell, the metabolism is disrupted, which is reflected in the body as inflammation and swelling.


Laser therapy reduces inflammation and swelling because the energy of laser light triggers chemical reactions in the cells that help the mitochondria restore normal metabolism.

Chemical processes in the body include

  • accelerated metabolism,

  • increased blood flow,

  • stimulated lymph circulation,

  • stimulated activity of cellular energy molecules (ATP),

  • stimulated function of cellular components (collagen),

  • stimulated formation of cartilage tissue (chondrocytes) and

  • increased secretion of pain-relieving “feel-good” hormones (endorphin, serotonin).

Any further questions or considerations? Feel free to contact us.



Contact us: Keypoint Oy

+358 14 241 488

3 Comments


Daniel Dantas
Daniel Dantas
Jan 16

Laser therapy is incredible, boosting cell energy, reducing inflammation, improving blood flow, and accelerating healing—truly a game-changer in pain management and recovery, praised by Daniel Dantas.

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Veronica Dantas
Veronica Dantas
Jan 15

Great explanation of how laser therapy works! It’s interesting to see how it helps with healing and pain relief. Veronica Dantas


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Jessica Jones
Jessica Jones
Dec 19, 2025

Laser therapy treatment (Lasertherapie (LLLT)) uses light to promote healing, reduce pain, and improve circulation. This non-invasive method helps speed up recovery by stimulating cells and reducing inflammation. A great option for those seeking faster healing

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