Hair Follicle Test

I have a hair test coming and I'm wondering if there are ways to pass a hair follicle test without buying a fancy shampoos detoxification. Ive heard that dandruff shampoo works is that true?

This is not something you can do with a bunch of crap laying around your house. DONT take advice from some site on stoners marijuana. your hair may fall out. there is only one way and the only real product made to do so. Shavers all others are cheap copies. (Really cheap as in not fake prizes)