2 doctors weighed in:

I had some hash brownies (4 separate times) in amsterdam and i was wondering how long it will last in my hair follicles? I'm not a normal user. Thanks

2 doctors weighed in
Dr. Robert Killian
General Practice
1 doctor agrees

In brief: Drugs in Hair

Until your hair is cut past the growth from the time you ingested the hash.
It does not dissipate from hair. It remains positive in your hair as longs as the hair is around.

In brief: Drugs in Hair

Until your hair is cut past the growth from the time you ingested the hash.
It does not dissipate from hair. It remains positive in your hair as longs as the hair is around.
Dr. Robert Killian
Dr. Robert Killian
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