1. First of all, ensure that the instruments used must be legal, and the relevant personnel who use the instruments need to receive professional training and obtain corresponding qualification certificates, so as to ensure the technical level and safety.

2. Secondly, each instrument has a corresponding operation manual, which must be carefully read and operated according to, and the instrument should be inspected and maintained regularly to ensure the good condition and normal operation of the instrument.

3. Finally, the beauty service process using instruments needs to be standardized, so that customers can truly feel the quality and effect of service.