Black "Highlights"

I was just wondering if it would be ok to use a temporary (6-8 weeks) black dye and the freehand/tinfoil method to put some streaks in my hair. I would want the streaks to be varying from 1/4 inch to 3/4 inch or so, however I don't know how thick I should make them. I have really thick hair, so should I just take the very top couple of rows of hair, or go all the way to my scalp? I know that sounds confusing but I don't know any other way to word it. Also, would it be alright to pin half of my hair up so I can do some streaks in the lower layers and then let the rest down and streak it too? By the way, I have thick, dark brown, straight, 24 inch hair if that matters at all. I'm also wondering if the black would completely wash out in the 6-8 weeks or will it be tinted forever? Right now my hair has not been processed at all except for the red Loreal Color Gems demi-permanent dye I put over it about 2-3 weeks ago. It just gave my hair a bit of a red tint in the sunlight, which is what I wanted. Any tips welcome... thanks!

I would look into some extension streaks instead of coloring your hair.  Black dye is *really* hard to remove and with hair that is 24" long already, do you really want to wait for it to grow out if something doesn't turn out right?

There's a great extension forum on this site.  You could make your own clips ins or do a few fusion streaks yourself that you could change at will instead of committing to a possibly permanent change.

Just a thought!