What is the purpose of performing a test curl?

• A. To see how hair reacts to perm
• B. To check scalp health
• C. To measure hair porosity
• D. To select the perm rods

Answer: (A)

Testing a curl is about previewing how the hair will respond to the perm solution and what curl pattern it will form. By taking a small strand, wrapping it around a rod, and applying a bit of solution, you can observe how quickly it curls, how strong the curl is, and whether the processing time needs to be adjusted. This preview helps you predict the final result and plan the correct processing duration. It isn’t meant to assess scalp health, measure porosity, or decide rod size after the fact—the rod size is chosen beforehand, and the test curl guides how long to process to achieve the desired curl.