With 20-volume hydrogen peroxide, the expected level of lift is typically how many levels?

With 20-volume hydrogen peroxide, the expected level of lift is typically how many levels?

• A. 1 level
• B. 2 levels
• C. 3 levels
• D. 4 levels

Answer: (B)

Lift from the developer depends on its volume. A 20-volume developer contains about 6% hydrogen peroxide and typically lifts hair about two levels. This is the standard expectation, though the exact amount can vary with processing time, the starting level, and hair porosity. If you need more lift, higher volumes like 30 or 40 are used, which can achieve roughly three to four levels depending on the formula and time. So, the typical lift with 20-volume hydrogen peroxide is two levels.

Lift from the developer depends on its volume. A 20-volume developer contains about 6% hydrogen peroxide and typically lifts hair about two levels. This is the standard expectation, though the exact amount can vary with processing time, the starting level, and hair porosity. If you need more lift, higher volumes like 30 or 40 are used, which can achieve roughly three to four levels depending on the formula and time. So, the typical lift with 20-volume hydrogen peroxide is two levels.