It was applied to the principle of the conversion of sunlight into plant cells has been incorporated through chlorophyll in plants, The National Aeronautics and Space Administration (NASA) have published the result that LED can grow the skin or muscles three times faster than usual. 

The National Aeronautics and Space Administration (NASA) have published the result that LED can grow the skin or muscles three times faster than usual. Various light sources of LEDs penetrate deep into the skin in a pain-free, non-invasive way, facilitating biochemical reactions in human cells by applying this principle.

It doesn’t have a risk of injury by using LLLT (Low Level Light Therapy) which uses low-power LED among light sources, and it is also possible to manage the skin individually even who are not experts.