NIC Cosmetology Written (Theory) ExamHair Care and ServicesHard
A cosmetologist is performing a full head application of permanent hair color on a client with 2 inches of virgin regrowth and previously colored ends. To ensure even color results and avoid banding, which application technique should be used?
- AApply color to the mid-shaft first, then to the regrowth, and finally to the ends.
- BApply color to the regrowth only, then pull through the ends.
- CApply color to the ends first, then to the regrowth.
- DApply color to the entire strand from roots to ends simultaneously.
Show answer & explanationAnswer & explanation
Correct answer: A. Apply color to the mid-shaft first, then to the regrowth, and finally to the ends.
For a retouch application with virgin regrowth and previously colored ends, the mid-shaft (the section between the regrowth and the porous ends) often needs the most processing time to achieve the desired level of deposit without over-processing the more porous ends or the faster-processing regrowth. Applying to mid-shaft first, then regrowth, then ends (if needed) helps achieve even results and avoid banding.
Why the other options are wrong
- B. Applying to regrowth only and then pulling through the ends is suitable for a simple retouch without significant mid-shaft issues, but the 'mid-shaft first' technique is more precise for avoiding banding on virgin regrowth with previously colored ends.
- C. Applying to ends first would likely over-process the porous ends, leading to darker or duller results.
- D. Applying to the entire strand simultaneously would result in uneven color due to varying porosity and natural pigment levels along the hair shaft.
Permanent Color Retouch Application
Applying permanent hair color to new growth (regrowth) to match the existing color on the mid-shaft and ends.
- Different application techniques are used based on virgin hair vs. regrowth.
- Porosity and underlying pigment variations require strategic application.
- Goal is seamless, even color from roots to ends, avoiding banding.
Memory trick: Mid-shaft first, then roots, then ends, for color that evenly transcends.