LIGHT THERAPY IMPROVES SKIN

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LIGHT THERAPY IMPROVES SKIN



A KAIST research team led by Professor Keon Jae Lee has developed a deep skin-stimulating LED mask, which, as verified in clinical trials, improves dermal elasticity by 340%.

Conventional LED masks, with their rigid design, fail to conform closely to the skin's contours. This limitation causes substantial light reflection, with up to 90% of the light being reflected over a distance of 2 cm, reducing light penetration and limiting stimulation of the deep skin layers that are essential for effective skin rejuvenation.

To address these challenges, Professor Lee's team developed a face-conforming surface lighting micro-LED (FSLED) mask, which can provide uniform photostimulation to the dermis. The critical technology lies in the mask's ability to deliver uniform light to deep skin tissues while maintaining a conformal attachment to the skin. This is achieved through a 3D origami structure integrated with 3,770 micro-LEDs and a flexible surface light-diffusion layer, minimizing the gaps between the light source and the skin.

In clinical trials involving 33 participants, the FSLED mask demonstrated a 340% improvement in deep skin elasticity compared to conventional LED masks, demonstrating its efficacy in significantly reducing skin wrinkles, sagging, and signs of aging.

Professor Keon Jae Lee said, "The FSLED mask provides cosmetic benefits to the entire facial dermis without the side effects of low-temperature burns, making home-care anti-aging treatment that enhances the quality of human life possible. The product is being manufactured by Fronics, KAIST startup company, and will be distributed globally through Amorepacific's network, with sales starting in November."

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