List Of How Long Does Hair Sample Drug Test Go Back Ideas

List Of How Long Does Hair Sample Drug Test Go Back Ideas. Web a hair follicle drug test can detect drug use over the past 90 days. Web the hair follicle drug test, when using the standard 1.5 inches of hair, can detect previous drug use up to 3 months.

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Web what is hair drug testing? Hair drug testing goes back much further than urine drug testing. Web how far back does a follicle screen go?