Q. Is there any way to make the coloring effect work faster?

A. Before Shampooing:
Your hair should be completely dry before using the shampoo.
When applying the shampoo, avoid adding water if possible, as this helps enhance the coloring effect.

A. After Shampooing:
After rinsing with water, do not dry your hair completely.
Gently towel-dry to remove excess water, and leave your hair slightly damp — this helps accelerate the browning (coloring) effect. It works just like how a cut apple turns brown when exposed to air — once it dries out completely, the browning process stops.