The biological effects of photobiomodulation on the scalp
Photobiomodulation (PBM), as a cutting-edge technology, acts directly on the biological processes of the scalp, offering an effective and natural solution for stimulating hair growth. But what are the precise biological effects of this innovative approach? This page explores in depth how PBM impacts the scalp at a cellular level, promoting regeneration, blood circulation and maintaining an optimal environment for hair follicles.
Cell regeneration :
an impact at the heart of tissue
PBM stimulates scalp cells by promoting tissue regeneration through activation of the mitochondria. These ‘energy powerhouses’ of the cells produce more ATP (adenosine triphosphate) under the effect of light, providing the energy needed for cell division and repair. This process is essential for restoring a healthy scalp and ensuring optimal hair growth.
PBM also acts on the stem cells present in the hair bulb, encouraging their proliferation and differentiation into new hair cells. This regeneration contributes not only to hair regrowth, but also to thickening and strengthening the hair structure.
Improved microcirculation: an influx of nutrients and oxygen
A sufficient blood supply is essential for healthy hair follicles. PBM acts directly on the blood vessels, encouraging them to dilate and increasing blood flow to the scalp. This improvement in microcirculation ensures optimum distribution of essential nutrients, such as amino acids, vitamins and minerals, while eliminating toxins and metabolic waste.
By optimising the supply of oxygen, PBM also strengthens the resilience of follicles, enabling them to produce stronger, thicker hair. This improved circulation is particularly beneficial for people suffering from hair loss linked to poor blood supply, often observed with age or certain pathologies.
Regulating inflammation: a soothed scalp
Chronic inflammation of the scalp is often associated with hair problems such as hair loss or weakened follicles. PBM acts as a powerful natural anti-inflammatory by reducing levels of pro-inflammatory cytokines while increasing the production of anti-inflammatory molecules.
This regulation of inflammation creates a healthier environment for hair follicles, protecting them from external and internal aggression. It also helps to reduce irritation, redness and other scalp discomforts, promoting harmonious hair growth.
Maintains cellular balance :
prevention of oxidative stress
Oxidative stress, caused by an excess of free radicals, is a major factor in the degradation of hair follicles. PBM stimulates the cells’ natural antioxidant enzymes, such as superoxide dismutase (SOD) and catalase, which neutralise free radicals and reduce tissue damage.
By preserving cellular integrity, PBM slows down the ageing of the scalp and follicles, increasing their longevity and capacity to produce healthy hair. This protective mechanism is particularly useful for people exposed to harmful environmental factors, such as pollution or UV rays.
Synergy with complementary care
PBM can be integrated into an overall hair care strategy. Combined with topical products rich in nourishing active ingredients or specific food supplements, it amplifies the beneficial effects on hair growth and density. For example, a scalp prepared with PBM will absorb applied serums or lotions better, optimising their effectiveness.
This synergy also fills in potential gaps in other approaches, offering a complete, personalised solution for each patient.
Impact of PBM on the scalp microbiome
An often underestimated aspect of hair health is the balance of the scalp microbiome. This microbiome, made up of billions of micro-organisms, plays a crucial role in protecting against infection and maintaining an environment conducive to hair growth. By reducing inflammation and stimulating cell regeneration, PBM helps to rebalance this microbiome.
By encouraging better interaction between scalp cells and its beneficial micro-organisms, PBM helps prevent problems such as dandruff or fungal infections, which can weaken hair follicles. A healthy microbiome thus complements the benefits of PBM, offering a holistic approach to balanced, strong hair.
Conclusion: biological regeneration for hair growth
The biological effects of photobiomodulation on the scalp illustrate its unique potential to transform the way we approach hair problems. By acting directly on cell regeneration, microcirculation, inflammation and oxidative stress, PBM offers a natural, effective and long-lasting solution to support healthy hair. Adopting this technology means choosing a proven scientific approach to meeting the needs of the hair and scalp.