Crazy Color Back to Base Color Remover 45gr From now on, you can remove Crazy Color from your hair in a simple and delicate way! Change color when YOU WANT! - delicately removes the color - nutralizes the pigment completely - it does not damage the hair How to use: In a non-metallic bowl, mix a pack Back to Base Remover with a 5.10 or 20 VOL developer, depending on the condition of the hair (Mix 1:2) Apply ONLY to dry hair that has been pre-lightened and treated with direct or semi-permanent colors. Leave-in for 30 min. Check every 5 minutes until the result is achieved. Carefully wash the hair with the shampoo, then use the conditioner.