Reading Time: <1 minuteThe dark side of cosmetic medicine is deep. Even cosmetic medicine, which is a wonderful and happy medicine, is currently being used as a tool to make money. A typical example of this is the MiraDry underarm odor business, where the treatment is left to nurses who are not specialists or knowledgeable doctors, and a dubious business model has been created in which the treatment is carried out by flashy advertising to attract customers. It is not that exosomes are bad, nor is it that the MiraDry treatment device is bad. Exosome-based tests and treatments are expected to have great potential in various fields. The Ministry of Health, Labor and Welfare has approved MiraDry as a treatment device for primary axillary hyperhidrosis because there is evidence that it can be used as a treatment device. Both are drugs and devices with great effectiveness and potential. Some unscrupulous cosmetic surgery clinics have taken advantage of this and specialized in the business, the MiraDry underarm odor business. Evidence, effectiveness, and safety have not been confirmed in areas or areas outside of the indications, and there have been victims. Doctors are ignorant and nurses are leading the treatment. Are these medical procedures really socially meaningful and patient-first? In many cases, cosmetic surgery is run by non-medical owners who prioritize profits, and this issue goes beyond medical ethics. The fact that major problems are occurring due to the business-first approach in cosmetic medicine is also being hidden. I strongly hope that a few unscrupulous cosmetic surgery clinics will not destroy the wonderful world of cosmetic medicine.