depends on what level you are now, to what shade of red and level of red you want to go.
you said brunette, but there are several levels to being brunette.. and like I said, I don't know what shade red you want to go.. like fire engine red, or like a strawberry blonde type of red.. (big differences obviously).
you can go to a salon and have them do it for you.. they can use a kicker to really boast that red for a more dramatic effect look.
personally, pending on your level and the condition of your hair, I may decolorize slightly by about two levels, then I would go through with an intense red, like maybe a 6.66 or 6IR and if you wanted it extra bright, maybe put a little kicker in there.
However I would NEVER do this to my own hair by myself, lol. just talking about if you were my client based on what you've said, this is probably what I would do. However feel free to pm me and we can discuss it further
at 7:03 PM on Aug. 16, 2010