What are they?
LED masks are wearable devices that emit specific wavelengths of light to influence skin function. The light penetrates the skin at different depths without causing heat or injury. Each colour of light activates different cellular responses. Originally developed for wound healing, LED technology is now widely used in both professional treatments and at-home devices to support skin health.
How they work in skincare
Red light (around 630–660 nm) reaches the dermis, where it stimulates fibroblasts, the cells responsible for producing collagen and elastin. This helps improve firmness, reduce fine lines, and support repair. Red light also calms inflammation, making it beneficial for sensitive or post-treatment skin.
Blue light (around 415 nm) works closer to the skin’s surface, where it helps kill Cutibacterium acnes, the bacteria involved in acne. It also helps reduce oiliness and inflammation associated with breakouts. Some devices combine red and blue light to treat acne and support healing simultaneously.
While LED masks are not instant fixes, consistent use over several weeks can improve tone, texture, and breakouts. Because they don’t damage skin, they can often be combined with active ingredients or professional treatments to enhance results.
