The import of medicines for personal use by physicians for aesthetic-related medical treatments in Japan is limited to cases such as a medical emergency and when substitutes are unavailable in the country. However, the real reasons why doctors import these products and their safety have not been investigated. Therefore, to contribute to future countermeasures, we investigated the circumstances for personal import of these medicines. We found that 60 of 177 (33.9%) physicians in the cosmetic surgery, plastic surgery, and dermatology departments had experience of importing medicines. Although only medically urgent medicines can be imported, 11.7% of physicians who imported medicines cited price differences between Japan and other countries as the reason for importing. Botulinum toxin injections (25.0%) were the most commonly imported medicines. Furthermore, 11 physicians (18.3%) responded that there was some defect in the products. This proportion was significantly higher among physicians who experienced a product efficacy or safety issue (68.8%) than among those who had never experienced it (0.0%) (P<0.001). This survey revealed that the import of aesthetic-related medicines that are not suitable for personal import is rampant. In addition, there could be an association between the defects of these products and their efficacy/safety. Therefore, to prevent health damage caused by these medicines, it is important to strengthen the regulatory system for collecting and providing information to ensure thorough confirmation (regarding specifications and package insert) at the time of delivery and use in patients and to tighten administrative checks about reasons for import.