What developer to use with Permanent color?

DeveloperUsageTiming (without heat)
10 Volume (3%)Lifts 1 level30 minutes for regular application
45 minutes for 50% or more gray hair
up to 60 minutes for crème lightener
20 Volume (6%)Lifts 1 to 2 levels depending on the color chosen30 minutes for regular application
45 minutes for 50% or more gray hair
up to 60 minutes for crème lightener
30 Volume (9%)Lifts 2 to 3 levels depending on the color chosen30 minutes for regular application
45 minutes for vibrant shades
up to 60 minutes for crème lightener
40 Volume (12%)Lifts 3 to 4 levels depending on the color chosen30 minutes for regular application
45 minutes for vibrant shades
up to 60 minutes for crème lightener
up to 60 minutes for high lift blondes