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How Long Does A Hair Drug Test Detect Pot?

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    THC is the longest lasting drug that will stay in your system for a while. If you are having a hair follicle test done it can detect THC for a year. If you have a blood test or urine test it can be detected for 30 days.
    0 0

    Dwxy2008 

    answered 7 months ago

      Hair follicle testing normally goes back 90 days. If you smoked weed in that time, it will show up.
      0 0

      Krystald30 

      answered 7 months ago

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