California Cosmetology Written ExamHaircoloringMedium
A cosmetologist needs to lift a client's natural level 5 hair to level 8 using a permanent color. How many volumes of developer should generally be selected to achieve this 3-level lift?
- A30 volume
- B10 volume
- C40 volume
- D20 volume
Show answer & explanationAnswer & explanation
Correct answer: A. 30 volume
As a general industry guideline, 20 volume lifts 1-2 levels, 30 volume lifts 2-3 levels, and 40 volume lifts up to 4 levels. Since the client needs a 3-level lift, 30 volume is the appropriate choice.
Why the other options are wrong
- B. 10 volume deposits color with minimal to no lift.
- C. 40 volume is excessive and more damaging for only a 3-level lift.
- D. 20 volume typically only lifts 1-2 levels.
Developer Volume & Lift
Developer volume determines the degree of lightening (lift) achieved during permanent haircoloring.
- 10 vol = deposit only, no lift
- 20 vol = 1-2 levels lift
- 30 vol = 2-3 levels lift
- 40 vol = up to 4 levels lift
Memory trick: 10-20-30-40 = 0-2-3-4 levels of lift, climbing the ladder.