They're expensive but there's value in red and blue LED light masks | Sali Hughes on beauty

In my experience, the most sceptical dermatologists are broadly positive about them. It's easy to see why, because LED therapy is already used widely in doctors' surgeries.

Red light has a longer wavelength and deals with the skin's deeper layers, triggering pathways to repairing damage and inflammation, and stimulating fibroblasts, which produce collagen.

Both red and blue light are very safe (including in pregnancy) and cause no discomfort, skin trauma, scarring or damage, and can even prove effective on stubborn conditions like rosacea.

Some clinical trials show denser, more elastic skin as a result of long-term, diligent use. They are idiot-proof - the treatment is so passive it feels as though nothing is happening at all.

Read at www.theguardian.com