What should be performed before a permanent waving procedure?

Before a permanent waving procedure, it is essential to perform a preliminary test curl. This step is important as it allows the cosmetologist to assess how the client's hair will react to the chemicals used in the perming process. Conducting a test curl helps determine the appropriate type and strength of the waving solution based on the client's hair condition, texture, and previous chemical treatments.

By performing a test curl, the stylist can see how long the curl will last and how tight or loose the curls will be, ensuring a safe and effective outcome. This practice reduces the risk of damage to the hair and ensures client satisfaction by providing a preview of the results. Additionally, it can identify any potential adverse reactions to the chemicals, allowing the cosmetologist to address these concerns before proceeding with the full treatment.