I did 2bleach an redyes in 1 wk, then 2wks later did another 1. . Wash it off with toxin wash. Ur hair will feel like straw but it depends on how much u wanna pass that darn test. I then put perm lotion on me ed and ended up fried and had to have hair cut really short. I was a daily smoker of very gd weed. I had 4 wks to get hair clean. I totally messed up the hair structure and used toxin wash an zydot. I had to get it shipped as U.KDon't sell toxin wash. Expensive but well worth it. I PASSED THE DREADED HAIR TEST. Hope this helps.