Can a Hair Follicle Test Go Back 6 Months?

This article explores the accuracy of hair follicle tests to detect drug use over a 6 month period. It examines the benefits and limitations of hair follicle testing, and investigates whether hair follicle tests can accurately measure drug use over a 6 month time span.

Can a Hair Follicle Test Go Back 12 Months?

This article explores the accuracy of hair follicle testing for determining drug use over a 12 month period. It compares this method to other methods and provides recommendations on the best way to determine drug use over that time frame.

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