Can a hair folicall test determine the last time you used a drug?

lisaP
Asked Feb 06, 2010
I don't think so, but it's quite possible. I mean drugs are broken down at a certain rate in your body, but at the same time, the more you do them, the more abundant they are in your system too, so it's pretty unlikely. By the way, it's follicle.
Oni_Kami
Answered Feb 06, 2010
hair follicle tests can go back up to six months, and I believe the concentration level at each marker can also be determined
spopemigl
Answered Aug 18, 2016
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bioresearchem
Answered Apr 17, 2019

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