I have no clue how much it costs to get it straightened. I might not have to if I the spray I got works. My hair is major firzz, not just in humidity, but everyday. I'm gonna do the second bleach tonight and I also bought super strong conditioner. Whatever I do it has to be chin length straight cut and black for October, I've been saving for my costume forever, it's going to cost over $250 but I also havn't had a real costume in years.