HAIR FOLLICLE TEST

Service Description

Hair testing is commonly used in Non-DOT testing but is not yet authorized for DOT or federal workplace drug testing. For hair drug testing, head hair is typically cut as close to the scalp as possible, though leg, arm, beard, and underarm hair can be used if there’s not enough head hair (at least 1.5 inches). Hair tests offer a longer detection window than urine tests, which typically detect drug use only within the past week. As a result, many employers, especially for pre-employment screenings, are opting for hair testing. It is also becoming more common in the legal field, including court-ordered drug tests for probation, divorce, or child custody cases. Hair drug tests can identify drug use over a longer period, typically up to 90 days, making them better suited for detecting chronic or binge drug use. Industries such as oil and gas, gaming, and auto manufacturing have adopted hair testing. Laboratories now offer expanded drug panels for hair testing beyond the typical 5-panel test, including tests for opiates, Benzodiazepines, Barbiturates, Methadone, Fentanyl, and more.