Why is it important to perform a strand test before a perm?

Performing a strand test before a perm is crucial because it allows a stylist to determine how the hair will react to the chemicals used in the perm solution. This test involves applying the perm solution to a small section of hair to evaluate the hair's resilience and sensitivity to the chemical process. It helps in predicting the outcome of the perm, such as whether the hair will curl as desired or if it might become overly damaged or broken. Different hair types and conditions can respond uniquely to perm solutions, making this preliminary test essential for achieving the best results while minimizing the risk of damage.

While moisture levels, color compatibility, and scalp sensitivity are important factors in hair care, they are not the primary reasons for conducting a strand test in this context. The strand test focuses specifically on how the hair's structure will respond to the perming chemicals, guiding the stylist in adjusting the process as needed for each individual client's hair.