Originally Posted by
OMGRandyJackson
There is no product that will allow you to pass a hair drug test. Cocaine can be detected through hair tests up to around 90 days after your last use. This is an estimate. This number can be higher or lower depending on your body size, sex, and level of use of the drug. Do not waste any money on a special shampoo. Anyone who claims they used the shampoo and then passed the test, passed the test BECAUSE the cocaine was out of their system. Not to mention every website that says "you can pass a drug hair test by doing this" is either A) selling you a product (so of course they will tell you it works), or B) Says "someone I know did this....and it it worked for them!!" There is no clear scientifically answer out there so you cannot rely on these websites. Your best bet is to shave your hair very short, in hopes that the chemical has grown out and is in the tips of your hair. EDIT: For every half inch of hair tested is about 1 month back. So for a 90 day window they will take approx 1.5 inches of hair. They can use any form of body hair. Hairtesting is also much more expensive then a simple urine test. If your company is doing a hair test over a urine sample then they are probably going to care even if it was a one time thing or small amount of cocaine used. In the past 4 months how much cocaine have you used?