... led) skin rejuvenation machine Principle:The rection of photo-dynamic is driven by hear-infrared, ultravioleet, or visible light. This new technology is ... dead cell, then to alleviate the symptom of aging skin,large pore,fine wrinkle,muddycomplexion.Blue lightDestroys the living ... as to kill them and eliminate acne in the skin.Photochemical reaction also accelerates the collagen fiber generation.Green ...