National Occupational Competency Testing Institute (NOCTI) Cosmetology Practice Exam

What must an operator do when giving a chemical permanent wave?

1. Follow the client's preferences

2. Use any brand product

3. Follow manufacturer's directions

4. Skip the strand test

The correct answer is: Follow manufacturer's directions

When giving a chemical permanent wave, the operator must follow the manufacturer's directions. This is crucial because the specific instructions provided with the product contain vital information regarding the proper application processes, timings, and any safety precautions that should be adhered to during the service. Following these directions ensures that the chemical reactions occur as intended, resulting in desired curling effects without causing damage to the client's hair or scalp. Using any brand product without adhering to the manufacturer’s directions could result in unpredictable results or even harm. While considering client preferences is important, safety and effectiveness must take precedence by following the specific guidelines provided by the product manufacturer. Similarly, skipping the strand test can lead to unexpected outcomes, underscoring the importance of adherence to procedural guidelines in hair treatments.