Louisiana Cosmetology Board Practice Exam 2025 - Free Cosmetology Practice Questions and Study Guide

Using an anti-frizz serum is an effective method for reducing frizzy hair because these products are specifically formulated to smooth the hair cuticle and provide moisture, which helps to combat frizz. Anti-frizz serums often contain ingredients like silicones, oils, and humectants that help seal the hair shaft, locking in moisture and preventing it from escaping into the air. This results in a smoother and shinier appearance while also providing some protection against humidity, which is a common culprit behind frizz.

In contrast, blow-drying on high heat can often exacerbate frizz by damaging the hair cuticle and stripping moisture. Increasing humidity generally worsens frizz, as the moisture in the air can make hair swell and disrupt its natural structure. Using a flat iron excessively can lead to heat damage and weakened hair, which can also contribute to frizz rather than alleviate it. Thus, using an anti-frizz serum is the most beneficial choice for managing and reducing frizzy hair.