How long until Marijuana cannot be detected in your hair?

Question

My friend is trying to get a job at Dierbergs, and we dk if they have drug tests or not, but how long until they cant detect it in your hair?

Answer 1

if they do a drug test, they would most likely so a urine test. hair tests are more expensive. if it was a one or two time use, a week and it'll be out. but if used regularly, a month-ish.

Answer 2

im sure if you shave it off then it wont be dectable.

my friend did it and they couldnt tell

Answer 3

Until the hair is new hair that was not there when the drugs were used.

Answer 4

Until that hair falls out or is cut out.  It shows up in rings in the colour of your hair.  They don't just disappear from the hair.

Answer 5

normally a drugs test is done by teting someones urine. Drugs in this can last anything up to 6 months depending on the drug. However hair tests are expensive and not normally done as routine. But if a hair test is done it can detect anything taken from years ago depending on the drug.