What hygiene practice must every person performing cosmetological services follow?

The correct practice that must be followed is to thoroughly wash hands before serving each client. This is crucial in the cosmetology field to ensure the health and safety of both the client and the service provider. Handwashing is a fundamental hygiene protocol that helps prevent the transmission of bacteria and viruses, thus minimizing the risk of infections and ensuring a clean environment throughout the service.

By washing hands thoroughly before attending to a client, cosmetology professionals demonstrate attention to cleanliness and uphold the standards set by health and safety regulations. This practice not only contributes to the overall wellbeing of clients but also enhances the reputation of the cosmetologist's services.

While hand sanitizer may be a supplementary hygiene measure, it is not as effective as thorough handwashing when it comes to removing certain types of contaminants, especially those that may be more prevalent in a salon environment. Additionally, washing hands only after serving clients would ignore the critical need for maintaining hygiene before initiating any service.