What should licensees do before performing any services?

The correct choice emphasizes the importance of hygiene practices in the field of esthetics. Before providing any services, licensees must ensure that their hands are clean to prevent the transfer of bacteria and other pathogens to clients. Using hand sanitizer or washing hands with soap and water is a fundamental health and safety protocol that helps maintain a sanitary environment, which is crucial in any esthetic service.

Maintaining hand hygiene is not just a matter of personal cleanliness; it is also a legal and ethical obligation in the esthetics industry. This action helps protect both clients and practitioners from potential infections and promotes a safe, professional experience.

While other choices may represent important aspects of the esthetic process, such as wearing gloves, cleaning tools, or using disinfectants, they do not address the initial and essential step of ensuring that the service provider's hands are clean before engaging in any treatment.