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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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    How long does THC show up in a hair follicle drug test?

I took 2 puffs of weed 8 months ago, at the end of April. One of the companies I would like to apply for a job with uses hair folicles to drug test. I have not applied there because I am afraid I will fail the drug test. How long does THC show up in a hair folicle drug test?
Wed, 14 Jan 2015
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Radiologist 's  Response
Hi and Welcome to HCM,

THC shows up about 90 days after use in a hair drug test.

Thanks for writing into us.


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