A 30 volume hydrogen peroxide solution will generally lift the hair 10 levels more than a 20 volume solution. Here option B is correct.
The difference in the volume of hydrogen peroxide solutions is related to their concentration of hydrogen peroxide.
A 30 volume hydrogen peroxide solution contains 30 times more hydrogen peroxide compared to a 1% solution, while a 20 volume solution contains 20 times more hydrogen peroxide compared to a 1%.
The concentration of hydrogen peroxide is crucial in hair coloring processes, where it serves as a developer. A 30 volume solution will generally lift hair color more effectively than a 20 volume solution. The difference in lifting capability is attributed to the higher concentration of hydrogen peroxide in the 30 volume solution. Each volume represents a 3% increase in hydrogen peroxide concentration.
Consequently, a 30 volume solution can be expected to lift the hair approximately 10 levels more than a 20 volume solution, providing a stronger and more aggressive bleaching effect during hair coloring treatments.
Therefore, a 30 volume solution will generally lift the hair 10 levels more than a 20 volume solution. Here option B is correct.