... to promote cell growth,decompose skin melanoma,speed up and restructure the dermis structure,increase skin whitening and gloss.For acne-prone skinBlue ... poor color gray skin anddull skin 7,Eliminate fatigue, relieve stress, improve sleep, especially for sub-health groups8,Dander, hair follicles recession ... relieve pain, help your wound heal itself, recover after surgery. Skin Care PDT beauty machine