California Cosmetology Practice Exam

Using a diffuser is an effective technique for reducing frizz in curly hair. A diffuser is an attachment for a blow dryer that disperses the airflow evenly, minimizing the amount of direct heat on the hair. This method allows for a gentler drying process, which is particularly beneficial for curly hair since it can be prone to frizz when exposed to high heat or rough handling.

When using a diffuser, the curls are often dried by gently placing them into the cupped end of the attachment and allowing the heat to set the shape of the curls without disrupting their natural texture. This technique helps to enhance the definition of the curls while keeping them hydrated and less frizzy.

In contrast, blow drying without a diffuser can blast the hair with concentrated heat, causing the cuticles to lift and leading to increased frizz. Flat ironing, while it can create a smooth hairstyle, is not suitable for maintaining the natural texture of curly hair and can also contribute to damage if used frequently. Drying with a towel, especially if done roughly, can be abrasive and create frizz due to friction. Thus, using a diffuser is the most favorable option for achieving defined, frizz-free curls.