Texas Class A Barber Written ExamChemical ServicesHard
A barber is performing a full head highlight service using foils. After applying the lightener to several sections, the barber notices some foils are swelling and leaking product. What is the most likely cause of this issue?
- AThe lightener was applied too heavily or foils were folded too tightly
- BThe client's hair has naturally low porosity
- CThe lightener was mixed with too low a volume developer
- DThe sections of hair in the foils were too small
Show answer & explanationAnswer & explanation
Correct answer: A. The lightener was applied too heavily or foils were folded too tightly
Swelling and leaking foils are typically caused by either applying too much lightener, which expands as it processes, or by folding the foils too tightly, trapping the expanding product and forcing it out.
Why the other options are wrong
- B. Low porosity hair might resist lightener penetration, but it would not directly cause the lightener to swell and leak from the foils.
- C. Too low a volume developer would result in slower or insufficient lift, not swelling and leaking.
- D. Sections being too small might lead to over-lightening but not necessarily swelling and leaking, unless combined with heavy application.
Lightener Swelling/Leaking Foils
An issue during highlighting where lightener expands and escapes from foils, often due to improper application technique or foil folding.
- Caused by too much product
- Caused by foils folded too tightly
- Can lead to uneven lift or staining
- Requires careful application and folding
Memory trick: Too 'M'uch, 'T'oo 'T'ight, 'T'rouble!