Florida Cosmetology Licensing ExamChemical ServicesMedium
A cosmetologist is performing a chemical relaxing service. After rinsing the relaxer thoroughly from the hair, what is the primary purpose of applying a neutralizing shampoo?
- ATo create a protective barrier against heat styling.
- BTo stop the chemical action of the relaxer and restore the hair's pH.
- CTo add shine and condition to the hair.
- DTo remove any remaining tangles from the hair.
Show answer & explanationAnswer & explanation
Correct answer: B. To stop the chemical action of the relaxer and restore the hair's pH.
Neutralizing shampoos are formulated with an acidic pH to counteract the alkalinity of the relaxer, effectively stopping its chemical action and bringing the hair and scalp back to their normal, acidic pH range.
Why the other options are wrong
- A. Heat protection is not the primary purpose of a neutralizing shampoo.
- C. While some neutralizing shampoos may have conditioning agents, their primary role is chemical neutralization.
- D. Detangling is a secondary benefit, not the main chemical purpose.
Neutralizing Shampoo (Relaxers)
A shampoo with an acidic pH used after chemical relaxers to stop the relaxing process, remove chemical residues, and restore the hair and scalp's normal pH balance.
- Contains a pH indicator to show if relaxer is fully removed.
- Crucial step to prevent over-processing and damage.
- Helps close the cuticle.
Memory trick: 'Neutralizing' shampoo 'N'egates the 'N'asty relaxer, 'N'o more processing!