Principles and benefits of photobiomodulation, light to stimulate biological reactions
La photobiomodulation (PBM) est une technologie qui révolutionne les domaines du bien-être et de la régénération cellulaire en utilisant la lumière pour stimuler diverses réponses biologiques dans le corps humain. Ce procédé s’appuie sur des appareils émettant des ondes lumineuses spécifiques, notamment par l’intermédiaire de LED et de lasers, pour agir en profondeur sur les cellules et favoriser la gestion des symptômes liés à plusieurs états inflammatoires, douleurs musculaires et autres. En combinant des longueurs d’onde spécifiques, comme la lumière rouge ou le laser basse intensité (Low Level Laser Therapy), la photobiomodulation se distingue comme une approche douce, non invasive et sans médicaments, particulièrement prisée dans les secteurs de la dermatologie, de la médecine sportive et de la récupération musculaire.
What is photobiomodulation?
Photobiomodulation is based on a simple principle: the application of low-intensity light to trigger biological reactions in the body. The light sources used, such as LEDs and low-intensity lasers, emit specific wavelengths that are absorbed by the cells. Once absorbed, this light energy stimulates the production of collagen and ATP (adenosine triphosphate), an essential molecule for cellular energy metabolism, thus promoting regeneration and supporting the management of various symptoms. In dermatology, for example, LED photobiomodulation sessions are often employed to aid skin repair and promote a beneficial effect on the skin, while in physiotherapy, it can support individuals in the management of muscular pain or minor injuries.
The wavelengths of red or infrared light are particularly exploited for their in-depth effects, as they are able to penetrate tissues effectively without damaging them. The energy is absorbed by the mitochondria, the cells' energy centers, which can stimulate their activity and tissue regeneration. This process, sometimes referred to as laser therapy, uses a low-intensity device that differs from more aggressive treatments, making photobiomodulation accessible to a wide audience, including in everyday wellness approaches.
How does photobiomodulation work?
Photobiomodulation therapy is organized into sessions during which light waves are projected onto the area to be treated. The choice of wavelengths depends on the desired effects. For example, red LED light is often used for surface effects, such as skin care to smooth skin tone or reduce redness. Conversely, infrared wavelengths are chosen to penetrate more deeply and support muscle recovery processes or the management of certain inflammations.
What are the main effects of photobiomodulation?
Unlike high-intensity laser therapies, photobiomodulation works through a cascade of biological effects, without causing structural changes in the tissue. By stimulating mitochondria, it helps to :
- Increase cellular energy production (ATP), essential for better performance and recovery.
- Promote collagen production in the skin, which can contribute to smoother skin and the reduction of certain signs of aging.
- Support the management of muscle and joint pain by helping to reduce inflammation and improve blood circulation.
- Support cell regeneration, particularly after superficial injuries or intense training sessions, by optimizing tissue repair.
These effects are mainly observed during regular sessions. Due to the low intensity of the light used, side effects are minimal. However, it is essential that these sessions are carried out under appropriate supervision to adjust the light parameters (such as wavelength and device power), thus ensuring optimum safety and enhanced efficacy.
LED photobiomodulation: a non-invasive method for well-being
One of the main attractions of LED photobiomodulation is its non-invasive nature. Unlike other methods that require physical interventions or heat applications, PBM relies solely on light to interact with cells. As a result, photobiomodulation sessions can be easily integrated into regular wellness or healthcare programs. Accompaniment centers, which embody a vision of supportive wellbeing, are exploring the use of photobiomodulation to accompany individuals affected by cancer and support their quality of life, as a complement to their main treatments. The absence of serious side effects and the safety of this process make it an accessible and adaptable option for a wide variety of needs.
The diversity of photobiomodulation applications
The use of photobiomodulation is gradually expanding in a number of areas, thanks in particular to clinical studies conducted by renowned research centers. Here are some of the most common applications of PBM:
- Skin regeneration: Used to support skin well-being, red LED light helps promote better skin appearance.
- Managing inflammation and muscular pain: low-intensity laser is often integrated into wellness programs, particularly in sports medicine or physiotherapy, to accompany the effects of a physical recovery session.
- Support for general well-being : Some people opt for photobiomodulation as part of their well-being routines, in particular to benefit from its energizing action, without the need for invasive treatments.
- Support for people in remission : Wellness centers such as Gustave Roussy are exploring the impact of PBM to support the recovery of quality of life for individuals in a post-cancer context.
Photobiomodulation therefore appears to be an innovative approach, focused on stimulating cellular activity and gently managing numerous symptoms, thanks to the benefits of light.
