Review on YIZHONG Coloring Permanent Professional Coverage by Lindsay Parker

First of all: smells terrible, how really terrible. Yes, the smell of "rotten eggs" definitely! Actually, I wouldn't be surprised if there's real sulfur in it, because the smell of it is really clear to me. Unless I got a bad batch. But I doubt it. Second: stains everywhere! I was careful enough to keep it in a middle zippered pocket. However, it was covered in stains in the packaging. Third: I didn't notice much of a difference other than the stench. My hair is naturally dark brown with lots of black faded color. did not restore the beautiful black. I don't recommend it and I wouldn't buy it again.