What is the technique called that involves curling hair using a curling iron?

The technique that involves curling hair using a curling iron is known as thermal curling. This method uses the heat from the curling iron to alter the structure of the hair temporarily, creating curls or waves that can vary in intensity depending on the size of the iron and the duration of heat application. Thermal curling is prized for its ability to produce long-lasting styles and is commonly used in both professional and personal hair styling.

In contrast, flat ironing is used to straighten hair rather than curl it, meaning it would not apply to this specific technique. Blow drying refers to the process of drying and setting hair with hot air, which may add volume and texture, but does not specifically create defined curls. Kinking refers to a different type of styling that involves creating irregular bends in the hair, which does not involve the same curling technique as a curling iron. Thus, thermal curling is the most accurate term for the process described.