California Barber Written ExamHair Care ServicesMedium
A client requests a hair color that is two levels lighter than her current natural level 6 (dark blonde). What volume of hydrogen peroxide is generally recommended for achieving up to two levels of lift with permanent hair color?
- A40 Volume
- B20 Volume
- C30 Volume
- D10 Volume
Show answer & explanationAnswer & explanation
Correct answer: B. 20 Volume
20 Volume hydrogen peroxide is the standard developer used for achieving up to two levels of lift with permanent hair color, as well as for gray coverage and depositing tone.
Why the other options are wrong
- A. 40 Volume is used for 3-4 levels of lift, requiring advanced skill and caution due to potential damage.
- C. 30 Volume is used for 2-3 levels of lift, requiring more caution.
- D. 10 Volume is typically used for depositing color without lift or for darker results.
Developer Volume & Lift
The volume of hydrogen peroxide in a developer determines its strength and ability to lift (lighten) natural hair color.
- Higher volume = more lift.
- 20 Volume is standard for 1-2 levels of lift.
- Always follow manufacturer's instructions.
Memory trick: Two levels need Twenty.