NIC Cosmetology Written (Theory) ExamHair Care and ServicesMedium
A cosmetologist is performing a chemical relaxer service using a hydroxide relaxer. After the appropriate processing time, the hair is rinsed thoroughly. What is the critical next step before shampooing to ensure the relaxer is completely deactivated and to prevent further damage?
- AApply an acid-balanced conditioner.
- BApply a pre-wrap lotion.
- CApply a neutralizing shampoo.
- DApply a protein treatment.
Show answer & explanationAnswer & explanation
Correct answer: C. Apply a neutralizing shampoo.
After rinsing a hydroxide relaxer, a neutralizing shampoo (which is typically acid-balanced) is essential to completely deactivate the relaxer and restore the hair's pH balance, preventing further processing and damage. Protein treatments and conditioners are for after neutralization.
Why the other options are wrong
- A. An acid-balanced conditioner is applied after the neutralizing shampoo to restore moisture and close the cuticle, not as the immediate deactivation step.
- B. Pre-wrap lotions are used before permanent waving, not after relaxer rinsing.
- D. A protein treatment is beneficial for strength but is applied after neutralization and conditioning.
Neutralizing Shampoo (Relaxers)
An acid-balanced shampoo used after rinsing a hydroxide relaxer to deactivate any remaining alkaline residue and restore the hair's pH, preventing further processing.
- Applied after rinsing relaxer
- Deactivates alkaline residue
- Restores pH balance
- Prevents further damage
Memory trick: After the rinse, neutralize the 'base' with the 'shampoo'.