kwillia said:
then I'll hit the highlight areas with some blonde highlight streaks which on my dark hair are more coppery
That's what's caused the damage, then, not the haircolor itself.
If you're staying in the same color range, I'd go with a demi-permanent color and activator. This deposits color on the outside of the hair shaft, rather than opening the cuticle to stain the cortex. It's a lot gentler on your hair.
By the time I get this done and posted, someone will have beaten me to it
but here goes:
Get a Wella
demi-permanent hair color in the shade closest to your own. Demi-permanent will not lighten your hair - it only deposits color. So disregard the rest of this if you're looking to go lighter.
Your color choices will be arranged by the following color base:
N = neutral
R = red
G = gold
A = ash
V = violet
Don't get something marked G if you don't want gold tones, etc, etc.
Numbers will go from 1 to 10, 1 being black and 10 being pale blonde. Don't go by the swatch because that's synthetic hair and not necessarily what you will end up with.
So, say, if you wanted a medium brown with no golden or red tones, you'd choose something that said 4N or 4A (for ashy tones). I'd pick the N, myself, because ash sometimes gives hair a gray cast.
You'll also need a bottle of activator or 10 volume developer. Any brand will do, but Wella is a good one.
In addition, buy an application bottle for $1 or so to mix and apply.
Mix the color at a 1:2 ratio - 1 part color, 2 parts activator. The color comes in 2 oz. tubes, so mix a whole tube with 4 oz or activator. Then just apply like normal, starting with the back of your head, underneath to top layer.
Time it for 20 minutes, then rinse well and apply your conditioner - NOT your regular conditioner, but one formulated for after coloring so it will make your cuticle lie flat and hold the color.
Ladies? Am I forgetting anything?