New York State Cosmetology Practice Exam 2025 – The All-in-One Guide to Master Your Certification!

A round brush is primarily used to create volume at the roots of the hair because its design allows for lifting and curling the hair while blow drying. When combined with a hair dryer, the round brush can be rolled at the roots to add lift and shape, making the hair look fuller. This technique enhances the natural texture of the hair and promotes a more voluminous appearance.

A flat iron, while effective for straightening hair, does not facilitate volume creation at the roots. Instead, it smooths and flatens hair, which may lead to a sleeker style but not necessarily to bodily volume at the roots.

A curling wand is mainly used for creating curls or waves in the hair. Though it can theoretically add some volume, its primary function is not aimed at root elevation, but rather at forming curls throughout the hair.

A hair dryer with a diffuser is more suitable for enhancing waves or curls in curly hair by distributing heat without disrupting the shape of those curls. However, it does not provide the same focused lift at the roots that a round brush does when used in combination with a blow dryer. This makes the round brush the most effective tool for root volume creation.