Georgia State Board Hair Design Practice Exam

The metal brush core is designed to conduct and hold heat more effectively than other materials. In a blow dry service, the primary goal is to enhance the speed and efficiency of drying and styling hair. Metal cores absorb heat from the blow dryer and distribute it evenly throughout the hair as you brush, which helps to create a smooth and polished finish.

The heat retention properties of metal allow for better styling control and faster results, especially when using techniques that require high temperatures to set curls or waves. This makes metal brushes particularly useful for professional hairstyling. In contrast, other materials like plastic, wooden, and nylon do not provide the same level of heat retention and may not facilitate the desired outcomes during a blow dry.