Florida Cosmetology Licensing ExamChemical ServicesHard
A cosmetologist is performing a chemical relaxer service on a client with very tight, resistant curls. After the processing time, the hair appears straight, but when stretched gently, it does not show a clear 'S' pattern. What does this indicate, and what should be the cosmetologist's next step?
- AThe hair is properly processed; proceed with rinsing and neutralizing.
- BThe 'S' pattern test is not applicable for resistant hair; rinse and neutralize.
- CThe hair is over-processed; rinse immediately and condition.
- DThe hair is under-processed; apply more relaxer and continue processing.
Show answer & explanationAnswer & explanation
Correct answer: D. The hair is under-processed; apply more relaxer and continue processing.
The 'S' pattern test is a crucial indicator for relaxer processing. If the hair appears straight but does not form a clear 'S' pattern when gently stretched, it indicates under-processing. More relaxer should be applied to the under-processed areas, and processing should continue until the 'S' pattern is achieved.
Why the other options are wrong
- A. Proper processing is confirmed by the 'S' pattern, which is absent here.
- B. The 'S' pattern test is universally applicable for chemical relaxers to ensure proper bond breakage.
- C. Over-processing would show extreme elasticity, mushy texture, or breakage, not just lack of 'S' pattern.
Relaxer 'S' Pattern Test
A critical strand test performed during a chemical relaxer service to determine if the hair's disulfide bonds have been sufficiently broken. A properly relaxed strand, when gently stretched, should form a distinct 'S' shape, indicating the hair is ready for rinsing.
- Checks for sufficient bond breakage
- Performed by gently stretching a small section of hair
- Properly relaxed hair forms an 'S' pattern
- No 'S' pattern = under-processed (continue processing)
- Overly elastic/mushy hair = over-processed (rinse immediately)
Memory trick: No 'S' on Stretch? Not Processed Yet!