Which of the following is not a licensed barber service?

Nail services are not a licensed barber service because they fall under the scope of cosmetology rather than barbering. Barbering primarily encompasses services related to hair, beard, and shaving. Licensed barbers are specifically trained to perform haircuts, shaving, and beard trims, which are core components of their craft.

Nail services typically require a different set of skills and training related to manicure and pedicure techniques, which are taught in cosmetology programs. Therefore, while barbers may offer an array of grooming services, nail services are outside their licensed practice area. This distinction is important for understanding professional boundaries and licensing requirements within the beauty and grooming industry.