A hair strand drug test screens for illicit drug use and the misuse of prescription medication. Though commonly called a “hair follicle test,” this drug test only tests clipped strands of hair, not ...
Hair follicle drug tests involve removing a small hair sample for laboratory testing. Results can show if a person has been using certain drugs or prescription medications in the previous 3 months. It ...
The Substance Abuse and Mental Health Services Administration (SAMHSA), U.S. Department of Health and Human Services (DHHS), proposed scientific and technical guidelines for hair drug testing in ...