Florida Cosmetology Licensing ExamHair ServicesMedium
A cosmetologist is performing a full head highlight service using foils. To ensure even lightening and prevent over-processing near the scalp, which application technique should be utilized?
- AApply lightener simultaneously to all sections from scalp to ends.
- BApply lightener to the ends first, then mid-shaft, and finally the scalp.
- CApply lightener to the mid-shaft and ends first, then to the scalp area.
- DApply lightener to the scalp area first, then mid-shaft and ends.
Show answer & explanationAnswer & explanation
Correct answer: C. Apply lightener to the mid-shaft and ends first, then to the scalp area.
Applying lightener to the mid-shaft and ends first, then to the scalp, accounts for the 'new growth heat' effect, where the scalp's natural heat accelerates processing. This technique helps achieve even lightening and prevents over-processing at the root.
Why the other options are wrong
- A. Simultaneous application would result in 'hot roots' and uneven lightening due to the scalp's accelerated processing.
- B. Applying to the ends first without considering the mid-shaft processing time could lead to uneven results, especially if the ends are already porous.
- D. Applying to the scalp first would lead to over-processing and a lighter result at the roots due to body heat, creating a 'hot root'.
Virgin Lightener Application (Off-Scalp First)
A technique for applying lightener to virgin hair, where the product is initially applied to the mid-shaft and ends, and then to the scalp area after a period, to ensure even processing and prevent a 'hot root'.
- Accounts for body heat at scalp
- Prevents 'hot roots' or over-processing at roots
- Ensures even lift from scalp to ends
- Common for virgin hair lightening applications
Memory trick: Mid-ends, then scalp, keeps the 'hot root' out!