What is the result of using too high a volume developer?

Using too high a volume developer can lead to an increased risk of hair damage due to the higher concentration of hydrogen peroxide present in stronger developers. Higher volumes are designed to lift the hair's cuticle more aggressively, which can result in excessive removal of the natural pigment and compromise the hair's integrity. This, in turn, can lead to dryness, brittleness, and weakened hair structure.

While using a higher volume developer might lighten the hair more significantly or speed up processing time, these benefits come with the trade-off of potential damage. Therefore, it is crucial for colorists to carefully assess the hair's condition and choose the appropriate developer volume to minimize harm while achieving the desired color results.