Is it legal to show non-medical credentials on an ultrasound cannon machine

Not legal. Non-medical qualification unit using regular medical equipment this situation is illegal practice of medicine, beauty salon ultrasound gun are fake, ultrasound gun is only sold to the medical qualification of the hospital, the beauty salon does not have medical qualifications, the operating physician does not have the license, so it is illegal practice of medicine, is not legal. The term "cosmetology" can be understood from two perspectives. The first is the word "look" and the second is "beauty". The word "look" includes the three meanings of face, grooming, and trimming. The word "beauty" has both adjective and verb meanings. The adjective indicates that the result and purpose of beauty is beautiful and good-looking; the verb indicates the process of beauty, that is, the meaning of beautification and change.