I just wanted to post my results since so few people do lol... A little tip buy the nexxus aloe rid from test clear, really good stuff. I'm a pretty heavy user. I vape multiple times a day everyday. I quit a month before my hair test because I thought it would be a urine test. When I found out I was doing a hair test I bought the aloe rid and used the macujo method about 6 times until it arrived. I then began to wash my hair with it at least 4 times a day up until the test, maybe a week at most. As it got closer to my test I felt unsure about passing so I didn't the jerry g method with 2 bleaches and redyes. I also used zydot the day of the test. Got confirmation that I passed.