Yellow light: 592 nm: Improves skin hydration and soothes dry and sensitive skin. Purple light: 463 - 633nm: Anti-ageing and reduction of skin imperfections to improve the skin’s vitality and radiance. Red Light: 633nm: Reduces fine lines and wrinkles, stimulates collagen and helps to improve blood circulation. Blue light: 463nm: Reduces acne-related redness and imperfections for clearer skin. Spa luxury at home: No need to step out—our LED facial mask not only helps you achieve a revitalised, youthful complexion, it can also easily brighten your day. Just unwind, lie back, and revel in the beauty of radiant skin, all from the comfort of your own home. How does LED light technology work: In LED light technology, light-emitting diodes (LEDs) are used to emit different colours of light to target specific skin issues. Energy is delivered to the skin cells, initiating various healing processes. Tackles skin age­ing, acne-re­lat­ed red­ness and dry skin: Elevate your skin with the Silk'n LED Face Mask 100, harnessing red, blue, yellow, and purple LED light to combat aging, acne-related redness, and skin imperfections.