Why is strand testing important before perming?

Strand testing is crucial before perming because it allows the stylist to determine how the individual hair strands will respond to the chemical treatment. This process involves applying the perm solution to a small section of hair to observe the results. By doing so, the stylist can evaluate the hair's texture, elasticity, and overall health. The reaction of the hair to the chemicals indicates whether it can withstand the perm process without being damaged. This step is vital as it helps in making informed decisions about the strength of the perm solution to use and the overall technique required for the application. Ensuring the hair's compatibility with the chemicals ultimately contributes to achieving the desired results while minimizing potential damage.