Which hair type is most commonly associated with frizz?

Frizz is most commonly associated with curly hair due to the structure and moisture retention characteristics of this hair type. Curly hair tends to have a more porous cuticle layer, which can lead to increased moisture absorption from the environment. When the hair absorbs humidity, the cuticle swells and interrupts the defined curl pattern, causing the hair to appear frizzy and unmanageable.

Additionally, the natural oil from the scalp does not travel as easily along the twists and turns of curly hair, contributing to dryness and promoting frizz. Curly hair's unique structure also means that it can be more susceptible to damage from styling tools and environmental factors, further exacerbating frizz.

While other hair types such as wavy or coarse hair can experience frizz due to certain conditions, curly hair is the one most typically identified with this issue, making it the correct answer in this context.