The ash cancels out the dark orangey tones and the blue cancels out the ash overtaking my hair and turning it green and if I still wanted a little warmth  the neutral still allows for some warmth to still be in the hair.....okay....correct me if I am wrong, please, bc I am just trying to make sure I have this all right???

Now, to the fillers.....I gather you have to add some pigment back to stripped hair, so in order to reach brown, you have to apply some red.

Now is this red like a red haircolor..is it permanent, semi, demi....??

Do I use developer...10 or 20?

Or is this filler like ....it seems I read something about using a protein pack as a filler???

So, do I apply the red filler, let it process and rinse off and then proceed to apply the brown color mixture..........??? OR

Do I apply the red filler and then top it with a coating of the brown haircolor mixture??

And what shade of red do you go with ....light, medium, dark or does that depend on the light, med., or dark brown you go with....like they correspond with each other???

If this info is on the website and I missed it...sorry and if you know where it is, could you, please, tell me where.....Otherwise, any knowledge on this subject is welcome bc I am just trying to get a handle on it.....thanks!

I read somewhere after you apply the filler to let your haircolor sit for 20 mins if using 20 vol. before applying so that you'd get more true tone....that you need the 20 vol. so that it activates, but after 20 min. the ammonia in the color has had time to dissipate.

Another way I have read about is applying a warm color such as copper right on the hair with no developer (acting as your filler) and timing 10 min. and then applying right on top of that  the desired color such a neutral med. brown (if that was the desired shade of brown) with the 20 vol. developer added to the med. brown color and timing....

Again thanks for sharing your knowledge.