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    tvolmert's Avatar
    tvolmert Posts: 1, Reputation: 1
    New Member

    Jan 25, 2012, 03:15 PM
    Hair follicle test
    I do not smoke marijuana but my wife does. I have to take a hair follicle test. Will I fail because the weed is in the hair, even though I do not smoke?
    tickle's Avatar
    tickle Posts: 23,796, Reputation: 2674

    Jan 25, 2012, 03:17 PM
    Yes, quite possible. Best to wash your hair a lot, but why do you have to take a test ?
    DrBill100's Avatar
    DrBill100 Posts: 3,241, Reputation: 502
    Ultra Member

    Jan 25, 2012, 03:40 PM
    Tickle is absolutely correct. External contamination is a major problem in hair drug testing involving any smoked product. The chemical washes used prior to testing are ineffective in many cases. See In Vitro Contamination of Hair by Marijuana Smoke, 2004 Several follow-up tests have added additional weight to this finding.

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