THC metabolites in hair refer to the detectable remnants of tetrahydrocannabinol (THC), the psychoactive component of cannabis. These metabolites are formed when THC is broken down by the body and can remain in hair follicles for up to 90 days, making hair testing a common method for detecting past cannabis use.
The presence of THC metabolites in hair can have important implications. In some workplaces, hair testing may be used as a screening tool for drug use, and a positive result could employment opportunities. Hair testing may also be used in legal proceedings, such as child custody cases, to assess an individual's past drug use patterns.
