Final answer:
Correct nail polishing order starts with hand hygiene using liquid soap and a nail brush, then focuses on washing areas easily missed. Nail technicians require vocational training, experience, and a license exam.
Step-by-step explanation:
The correct order of application in polishing a client's nails begins with proper hand hygiene to prevent health risks during professional manicures or pedicures. Initially, arms should be washed thoroughly. Then approximately 5 mL (1 teaspoon) of liquid soap should be applied, ensuring coverage over all hand surfaces for at least 20 seconds.
Special attention must be dedicated to the most commonly missed areas: the thumb, wrist, areas between the fingers, and the skin under the fingernails. In an ideal scenario, a nail brush should be used to eliminate any debris or microorganisms present.
As for the professional standards, there are specific training and certification requirements for nail technicians. These vary by location but typically include a combination of vocational schooling, practical experience, and passing a licensing examination. This ensures they are well-versed in both the creative and health aspects of nail care services.