To match or deepen color, use 10-volume crème permanente developer. To cover more than 30% gray, use at least 20-volume.

 

To lighten natural hair color Levels 4-10 (Light Brown - Lightest Blonde):

 

1 Level - 10 Volume

 

2 Levels - 20 Volume

 

3 Levels- 30 Volume

 

4 Levels - 40 Volume

 

5 Levels - Double 40* Volume (When mixed with high-lift blondes)

 

 

To lighten natural hair color Levels 1-3 (Black - Medium Brown):

 

1 Level - 20 Volume

 

2 Levels - 30 Volume

 

3 Levels - 40* Volume

 

NOTE: For additional lift, formulate 1-2 Levels lighter than the desired Level.