Photobiomodulation: innovative technology for skin and hair

Photobiomodulation uses light to stimulate certain reactions within the skin and scalp, improving the appearance of signs of skin aging and strengthening hair. In this article, we review the main benefits of this technology.

The scientific basis of photobiomodulation

Wavelengths are variables that characterize electromagnetic waves, in particular light. They determine whether a wave belongs to the ultraviolet, visible or infrared range. Thanks to technological advances, it is now possible to create LEDs emitting specific wavelengths, corresponding to different colors (blue, green, yellow, red). Photobiomodulation relies on the sensitivity of certain cellular elements, called chromophores, to these different wavelengths.

While the sun is recognized as a carcinogen due to ultraviolet radiation, light can also have beneficial effects in certain cases, such as UVB phototherapy treatment for psoriasis.

The use of red and infrared light for the skin

Research has shown that red light, with a wavelength of 633 nm, stimulates mitochondria to produce more energy. More precisely, red light is absorbed by tissues and then converted into usable energy by our cells.

• Stimulates collagen production for firmer skin and fewer wrinkles
• Improved cell renewal for smoother, more luminous skin
• Improved blood circulation
• Reduces inflammation to accelerate skin repair and reduce redness.

Near-infrared light, at 830 nm, also increases blood circulation, improving oxygenation of skin cells and providing essential nutrients for healthy skin. It also helps reduce inflammation and increase skin hydration, which can reduce the appearance of wrinkles, fine lines and scars.

Visit LED masks for the face can combine these two types of light: red light at 633 nm and near-infrared light at 830 nm. By combining these two wavelengths, it acts on various signs of aging:

• Stimulates collagen and elastin production for firmer, more elastic, less flaccid skin
• Activates cell renewal, reducing dullness and improving texture
• Reduces inflammation, improves overall skin appearance.

The role of photobiomodulation on hair loss

Androgenetic alopecia is due to a genetic predisposition causing an excessive response to male hormones, notably testosterone. This leads to an alteration in the hair growth cycle, leading to the weakening and shortening of the anagen (growth) phases of the hair follicle.

Studies show that photobiomodulation stimulates this anagen phase by prolonging its duration and increasing the number of active hair follicles, resulting in increased hair density and larger hair diameter.

This technology also improves the supply of nutrients and growth factors to strengthen hair and reduce breakage and dullness.

Photobiomodulation represents an innovative, non-invasive approach to treating the signs of skin aging and improving hair health. Thanks to the optimal combination of different wavelengths, this technology offers promising results for people wishing to take care of their appearance.