when you want to get 2 levels of lift
20 volume
A 20 volume developer will be sufficient for coloring facial hair, especially if there are some grays mixed in.
you use 20 volume developer on gray hair
20 or 30 Volume developer is recommended for blonding.
20 volume.
Which developer you use will depend on the color you want to achieve. A 20 developer will give you a darker color than a 30 or 40 developer.
Equal parts of 10V. Developer + 20V. Developer= 15 Volume Developer
Yes, this lightener needs to be mixed with at least a 20 Volume developer.
What is the difference between 10 and 20 volume creme developer?
Redken Camo Color Developer is 20 volume.
20 Volume developer should be used when toning hair.
you can't mix developer with developer to make another developer