what does a hair diffuser do

A hair diffuser is an attachment for a hair dryer that disperses the air to reduce frizz and enhance the natural texture of curly or wavy hair. It works by spreading the airstream over a wider area in a more controlled way, which helps to keep the natural curl pattern and prevent curls from being blown out of shape and into frizz. A diffuser is a round, plastic attachment that can be slid onto the nozzle of a hair dryer. To use a diffuser, it is recommended to use a low heat and speed setting to prevent the hair from tangling. The diffuser should be cupped around the hair and pushed around with fingers to shape it, without using brushes or combs. It is also recommended to start by drying the ends of the hair and moving up toward the roots as you dry, and to flip the head upside down to get more volume at the roots. The diffusing process can be a long one, but it is worth spending time to banish frizz entirely.