What it is: A universal diffuser that broadens and reduces the speed of airflow from your blow dryer to gently dry, define curls and reduce frizz.Who it's for: Suitable for those with naturally curly hair.What it does: This diffuser is designed to fit your Buttercup and Baby Buttercup (both sold separately), as well as most other hair dryers. How to use: Attach to the nozzle of your blow dryer and adjust the temperature setting to low or medium. Start at the ends. Gently scoop large amounts of hair into the diffuser, allowing the natural curls to form. Work slowly up to the root, gently massaging your hair in a circular motion with the diffuser's fingers. Hold each section in place for several seconds before moving onto the next section. Continue until your hair is dry.Pro tips: Tilt your head so you can dip your hair into the diffuser.