Ultrasonic pouch removal is the only non-invasive and non-trace pouch removal operation at present. Principle: Using ultrasonic vibration emulsification principle to emulsify the fat in eye bags and absorb it through special eye mask. Different tissues and cells of the human body have their own fixed ultrasonic vibration frequency, so do the fat under the eyes. When the ultrasonic frequency emitted by the ultrasonic instrument is equal to the fat under the eyes, the fat under the eyes will vibrate. When the energy density of vibration reaches a certain level, the cell membrane of the fat under the eyes will be destroyed and emulsified. In this way, the fat cells in the eye bags are eliminated in a targeted way, so as to ensure that other cells around them remain intact and are not harmed by the frequency of current ultrasonic waves, and the purpose of destroying only emulsified fat cells in the eye bags is achieved. It usually takes 1-3 months to recover, depending on everyone's physical fitness.