Instruct: Classify the given Amazon review as either positive or negative.
Query: Didn't Work

This product guarantees that it will turn dark hair blonde. I had Auburn hair underneath due to a very bad salon experience. The directions say leave on a minimun of 20 minutes and a maximun of 90. I left it on for 80 minutes and it turned my hair bright orange. It says that if it doesn't work to your liking the first time to use again but after having it on for so long, I ended up with a chemical rash and had to go to a dermatoligists. So doing again is not an option. I do not recommend unless you have light brown to dark blonde hair, then it may work for you..