Review (5/5): This really does work!!!
My hair has had treatments and black dye jobs and black box dye jobs multiple times. I used half a bottle of each, weighed the mixtures, mixed together, applied it to my hair and waited the suggested time. Did it work? Heck yeah!!! I used the flashlight on my iPhone, my hair is brown. Amazing, seriously! I will use the other half of the mixture in a few days, so as no to waste it and to be sure the pigment is completely out!!! By the way, it doesn’t smell like rotten eggs, it smells more like rotten cheeses. Good luck!