There are several things you can do to your hair that improve your chances to pass. There are several methods that can help lower the amount of THC in the hair and depending on usage, hair type, and what you do, you may be able to beat the hair test. There are actually better things then hair bleaching but it does help. It is hard to beat it and I beat one but I did so many things to my hair I am not sure which one caused me to beat it. Look at my profile and shoot me an email.