Texas Class A Barber Written ExamChemical ServicesMedium
A barber is performing a chemical relaxing service using a thio relaxer. Which of the following actions is crucial to prevent over-processing and damage to the hair?
- AUsing the hottest possible water for rinsing
- BApplying relaxer to the scalp first
- CPerforming periodic strand tests during processing
- DAggressively combing the hair during application
Show answer & explanationAnswer & explanation
Correct answer: C. Performing periodic strand tests during processing
Periodic strand tests are essential during chemical relaxing to monitor the hair's elasticity and determine when the desired degree of relaxation has been achieved, preventing over-processing.
Why the other options are wrong
- A. Using hot water for rinsing can further irritate the scalp and open the cuticle too much, leading to damage.
- B. Applying relaxer to the scalp first can cause irritation and burns, as the scalp's natural heat can accelerate processing.
- D. Aggressive combing can cause breakage and damage, especially when the hair is in a weakened state from the relaxer.
Chemical Relaxer Strand Test
A procedure performed during chemical relaxing to assess the hair's processing level and elasticity, preventing over-processing.
- Monitors hair's response to relaxer
- Checks for desired relaxation and elasticity
- Prevents over-processing and breakage
- Involves stretching a few strands of hair
Memory trick: Strand tests 'S'ave 'T'resses 'R'eally 'A'nd 'N'ever 'D'amage.