How long does marijuana stay in your hair follicles?

It stays in the hair until the hair grows out and that section is cut off. It doesn't wash out since it is embedded into the core of the hair. Even if you cut your hair, or shave your head, it still can be taken from other areas like eyebrows, eye lashes, pubes, arm hair etc.

yes in marijuana the chemical htc can still show up in your hair up to six months after smoking. This is how the FBI takes tests for marijuana by taking a hair sample. However, I read on 420.com that it can take up to three years to clear, so you may be better off shaving your head.

Do not shave your head because they will test your chest hair pubic hair anywhere you have hair they will test it. Depending on how long you smoke it can stay in your hair anywhere from 10-90+ days it depends on alot of stuff. worst thing you can do is shave your hair. They will test your ass crack if they can't find any hair anywhere.

So unless you shave your ENTIRE body you will probably get busted. Sorry but you can't beat the hair test. You can flush out the blood or urine tests but the hair is fixed.