International pop star Katy Perry uses red light therapy tools. So do the Kardashians and actresses Jessica Alba and Julianne Moore.
Many people now regularly don glowing masks, wave red light wands over their face and sit or lie in rooms with LED panels to help improve their skin and receive other benefits to their health. Treatments and products can cost hundreds of dollars and the global market is projected to surpass $1 billion by 2030, according to Research and Markets.
