If it's tested like weed, and I can only assume that it is (basic principle is searching traces of the smoke in the person's hair) then however long it's been since you have had a haircut plus however long the hair before that was growing ( It's hard to explain this part. Hopefully somebody will be able to better articulate this)I've heard that they make shampoos for hair tests with weed but your best bet is to cut it all off. It's these second surest way not to have traces in your hair. The first of course is to not do it at all but that's your decision. Hope this helps!
Nicotine can be detected in hair follicles for up to 90 days. It can be detected in urine for 2 to 4 days, and in a person's saliva for 1 to 4 days.
how long doe nicotine stay in your system if you stop smoking?
It can be detected. The metabolite from nicotine will stay in your system up to 4 or 5 days.
how long will alcohol stay in your hair folical
How long does alochol stay in hair follicles
Not as long as it will stay in short fine hair, but it will stay for awhile.
Drug stay in your hair for months together.
as long as it takes for your hair to grow out
It stays in your hair follicles for life.
Until the hair is cut.
how long does it take for heroine to be negative in a hair strand test
9 months