Which of the following may require a license from the State Board of Cosmetology?

The correct choice identifies that barbers, estheticians, and nail technicians are professions that require a license from the State Board of Cosmetology. In Pennsylvania, the practice of cosmetology is regulated to ensure that professionals meet certain standards of education and safety. Each of these professions has specific licensing requirements that involve completing a designated number of training hours, passing a state board examination, and adhering to professional practice standards.

This licensing ensures that practitioners are knowledgeable about sanitation, customer safety, and the technical skills necessary for their specific area, whether it be hair cutting, skin care treatments, or nail enhancements. The regulation helps protect consumers and maintains high standards within the beauty industry.

In contrast, the other options listed do not encompass the full range of licensed cosmetology practices within the state, which is why they do not represent the complete requirement for licensure.