The registration approval of Feijiameisu max clearly indicates that it is an auxiliary therapeutic instrument with the name of "ultrasonic therapeutic instrument", which is a relatively broad instrument. The approval says: it is suitable for the adjuvant treatment of chronic tissue injury pain, scar and neurodermatitis of shoulder, neck, waist and abdomen and limbs. It can be used for the rehabilitation of medical institutions, dermatology, plastic surgery, and adjuvant treatment of gynecological related diseases. Take a closer look at the name, function and use of this instrument, as well as the launch time, we will find that the ultrasonic gun is not a professional anti-aging treatment equipment, but an auxiliary treatment instrument for pain, which is used for the auxiliary treatment of dermatology, gynecology, plastic surgery, rehabilitation and other related diseases, and does not mention any anti-aging related corresponding items, let alone facial anti-aging! At present, the mode of micro-Jiao Da focal area of ultrasonic gun has not broken through the technical barrier of ultrasonic scalpel, and it is only a substitute, not a so-called "advanced upgrade". The ultrasonic gun is more like an imitation of the Korean version of the ultrasonic scalpel 7D Jurati. At most, it is a gentle skin care instrument, which needs to be used many times to have a little effect. It is not as magical and beautiful as recommended by online celebrity bloggers! Less than half a year after the launch of the ultrasonic gun, there are definitely not many users, not to mention the real experience of a large number of customers! So its safety and anti-aging effect really need to be studied and waited. Therefore, consumers should treat ultrasonic cannons rationally and not be misled by some online celebrity bloggers.