How does it work?
Each color corresponds to a wavelength measured in nanometers (nm), which determines how deeply it acts within the skin.
Shorter wavelengths act on the surface, while longer wavelengths penetrate more deeply. The light is absorbed by the cells, stimulating their activity, including energy production (ATP), collagen synthesis, skin regeneration and inflammation reduction.
This process is known as cellular biostimulation.
Each color has its own specific action
Red LED — 630–660 nm
Main action: anti-aging & firmnessRed light acts deep within the dermis by stimulating fibroblast activity, the cells responsible for producing collagen and elastin. This biostimulation gradually improves skin firmness and elasticity, helping to reduce the appearance of fine lines and wrinkles.
It is ideal for mature skin, loss of firmness and anti-aging prevention.
Orange LED — 590–610 nm
Main action: radiance and vitalityOrange LED is known to stimulate blood and lymphatic microcirculation, promoting a better supply of oxygen and nutrients to skin cells.
This improved circulation helps revive the complexion, reduce signs of fatigue and support skin repair. Orange LED is ideal for dull, stressed, tired or lackluster skin.
Green LED — 520–550 nm
Main action: even skin toneThese LEDs act at an intermediate level of the skin by regulating melanin production. They therefore help reduce the appearance of pigmentation spots and even out the complexion. Their soothing action also helps calm diffuse redness, leaving the skin looking more uniform and balanced.
Ideal for uneven complexions, dark spots and mild hyperpigmentation.
Blue-Green LED — 505 nm
Main action: clarity and “tone-up” effectThe 505 nm LED sits precisely between blue and green. It combines the properties of blue LEDs, known for their anti-inflammatory action, and green LEDs, which help regulate pigmentation.
Most importantly, 505 nm is studied for its effect on skin clarity, acting directly on excess superficial melanin and the oxidation responsible for a dull complexion.
Unlike other LEDs, 505 nm works more subtly on overall complexion quality: it helps reduce post-acne marks and improve microcirculation, leaving skin looking clearer, less dull and more even. It is often described as a “tone-up” effect, enhancing overall radiance rather than simply targeting dark spots.
Blue LED — 415–470 nm
Main action: blemish controlBlue LED acts primarily on the surface by targeting the bacteria involved in acne, particularly Cutibacterium acnes. Its antibacterial action helps reduce breakouts and limit their recurrence.
It also helps reduce inflammation associated with blemishes, regulate excess sebum and visibly refine skin texture, creating the appearance of tighter pores.
It is a suitable option for combination to oily skin or skin prone to inflammatory acne.
The overall benefits of LEDs in beauty tech
In beauty tech, LEDs work through photobiomodulation to stimulate cellular activity and support the skin’s natural functions. Depending on the wavelength used, they can improve firmness and elasticity by supporting collagen production, revive radiance by stimulating microcirculation, reduce redness through their soothing action and help minimize mild pigmentation by regulating melanin production.
They are often combined with other technologies such as EMS, radiofrequency, microcurrents or heat. In synergy, LED prepares and supports the skin, creating a more receptive cellular environment and enhancing the overall effectiveness of other technologies.
Who is LED suitable for?
LED is suitable for almost all skin types, including sensitive skin when used appropriately. Non-invasive and painless, it is designed for those looking for a gentle, gradual solution, whether for anti-aging prevention from the age of 25–30 or for maintenance to prolong the benefits of a professional treatment.
Exposure time and usage protocol
Exposure time is generally around 10 minutes per session, but this can vary depending on the device, its power and the desired effect.
As with any beauty tool, consistency remains essential to achieve visible results.
LED devices available at Bijo;
Blue Green Mask
A mask combining EMS and 505 nm and red LED light therapy to target facial tone, firmness and even skin tone all at once.
Liftlogy SP
A high-tech device combining EMS, light therapy and heat to tone, firm and enhance the complexion in just a few minutes a day.
Photo PLUS Prestige S
A multifunctional device combining radiofrequency, EMS, microcurrent, cryotherapy and multiple LED lights for a complete at-home facial treatment.
LEDs are part of a progressive approach to beauty tech: each wavelength addresses different needs and can be combined with other technologies to support overall skin quality. Consistency and following each device’s recommended protocol remain essential to making LED a lasting part of your routine.
