I want to dye my hair white (with kiss express crystal clear) or mood indigo (jazzing). My hair is mostly gray but it still has a lot of dark spots in he back and on the Sides. I was told today to use 10 volume cream developer in them to help them dye my hair. What I new to know is what is the ratio of he mix? Please help. Thank you.

It doesn't matter what you were told you can use you will never be able to dye your hair white. Unless it is white naturally, mine is. The dark spots will remain because that is the way your genetic make up is programmed for.