What effect does using a higher volume developer have in the lightening process?

Using a higher volume developer in the lightening process provides a stronger lift because it contains a higher concentration of hydrogen peroxide. This increased concentration accelerates the oxidation process that lightens the hair. The primary function of the developer is to activate the lightening agents in the hair color or bleach, and a higher volume allows for more potent penetration of these agents into the hair shaft.

As a result, the hair is lifted to a lighter shade more effectively. This is particularly important when seeking to achieve dramatic changes in color, such as moving from a dark to a much lighter shade. The potency of the higher volume developer ensures that the pigments within the hair are broken down effectively, facilitating the desired lightening effect.

In contrast, lower volume developers do not provide the same degree of lift and would require a longer processing time, while also offering less intense results overall.