Facial conformal LED mask shows 340% improved efficacy in the deep elasticity of the skin

Conventional LED masks do not adapt well to the contours of the skin due to their rigid design. This limitation causes significant light reflection, with up to 90% reflected over a distance of 2 cm, reducing light penetration and limiting stimulation of the deep skin layers essential for effective skin rejuvenation.

To overcome these challenges, Professor Keon Jae Lee’s team has developed a face-adaptive micro-LED mask (FSLED), which can provide uniform photostimulation of the dermis. The key technology lies in the mask’s ability to deliver uniform light to deep skin tissues while maintaining conformal skin adhesion. This is achieved through a 3D origami structure, integrated with 3,770 micro-LEDs and a flexible light diffusion layer on the surface, minimizing the gaps between the light source and the skin.

“Clinical Validation of Face-fit Surface Illumination Micro Light-emitting Diode Mask for Anti-Aging Skin Treatment,” was published in Advanced materials on October 22, 2024.

In clinical trials with 33 participants, the FSLED mask demonstrated a 340% improvement in deep skin elasticity compared to conventional LED masks, proving its effectiveness in significantly reducing skin wrinkles, sagging and aging.

Professor Lee said: “The FSLED mask provides cosmetic benefits to the entire facial dermis without the side effects of low-temperature burns, enabling a home-use anti-aging treatment that improves the quality of human life. The product is manufactured by Fronics, a KAIST start-up company, and will be distributed globally through Amorepacific’s network, with sales beginning in November.