Why do a scalp bleach?I was thinking bleach root area with 20 volume. To very pale yellow, then foil towel dried hair and apply 9/16 toner for clean white blonde then flood rest with maybe 8/38 or 9/38 . For darker softer effect.
Or when bleached. Apply lowlights say 9/38 or 8/38 shade.then flood rest of hair with 9/16 colour touch. I don't want it too warm as the picture has two tones of a cool blonde.