hair follicle drug test...

Hair follicle analysis is an extremely accurate and effective method of detecting drugs of abuse. Hair analysis provides a 90-day window for the detection of drugs of abuse by evaluatiing the amount of drug metabolites embedded inside the hair shaft. Each ½ inch of hair provides a 30-day history of drug use. The industry standard is to test 1.5 inches, which provides a 90-day history of the donor’s drug use. The configurations offered by On-site Screening are listed below along with the screening and confirmation cut-off levels for hair testing.