A member asked:

Regarding hair follicle drug test, will thc be be present in hair follicles four months after quitting?

A doctor has provided 1 answer
Dr. Pamela Pappas answered

Specializes in Psychiatry

Possible: The hair follicles themselves usually remain positive for at least 90 days after last use. Could be longer in some people, though. The hair that is tested will be positive too.

Answered 6/12/2013

5.2k views

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