Ask The Doctor > Questions & Answers > Hair Follicle Drug Testing: Window Period for Marijuana

Hair Follicle Drug Testing: Window Period for Marijuana

Patient: Can you pass a hair follicle test for THC if you have have spoked in the last two weeks? Not a regular smoker.

 

 

Doctor: If what you meant by “passing” the hair follicle test is a negative result, then, in your case, I doubt it. THC can stay stay in your hair for ~3mos. Although results may vary depending on how fast your hair grows, most kits are standardized. I do hope this helps. Take care always.

 


 

 
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Dr. Suneel Sharman M.D.

Dr. Suneel Sharman M.D.

Dr. Suneel Sharman completed his residency in Family Medicine at the University of Toronto. He currently operates Infinity Health Centre, a walk-in-clinic in downtown Toronto.

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