Help Confused :/

[rachelbentall]

Hey guys i have a really silly question,

my friend has got wella kol.p 12.1 and blondor lightening mesch on her hair, and at the back a mix match of blondes where she has let that grow due to having a bob cut in.

however i am aiming to darken and change tone to top and back, i have two wella kol.p 9 line colours, and a light brown mousse, just to help retone her hair, so it isnt patchy, can i put the 9 lines on top of the mousse?

any help or suggestion much appreciated

 

[lisa82]

What's her natural base colour?

 

[blondie151983]

Personally i wouldn't colour over the mousse, are you wanting to use the mousse as a re-pigging aid?? Are you trying to get the hair to one colour all over??