... Safe and effective device. 4,CE,RoHs,FCC 3 in 1 Multifunction Portable Ultrasound and LED Skin Rejuvenation Equipment. Brief ... , itsthermal, physical and chemical effects can rise the temperature in deep skin by 0.5-1°C, promoteskin to absorb essences, ... accelerate metabolism and reinforce the regenerative course of tissue. *Ultrasonic can ...