What Is A Hair Drug Test ?

Hair drug test helps in detecting the drugs present in body, even the drug samples, which were consumed long back. Thus, this test is far more superior to urine drug test, because urine tests detect drugs, which were taken very recently. Hair test is usually preferred by law agencies, doping bureaus and other institutions. Law agencies send hair samples to forensic departments to perform the test, whereas other bureaus and institutions have their own full fledge laboratories, where examiners conduct hair drug test. Some bureaus also rely on hair drug test to find out the drug patterns. That means it determines as which drugs individuals had consumed, and when did they discontinued using them. If drug does not migrate along the hair shaft, testers conduct the same test on relative long hair segment to draw the results. This test can also reliably make a distinction between opiate as well as poppy seeds usage. Hair drug test detects a wide array of drugs such as cocaine, opiates, MDMA, Phencyclidine (PCP), Amphetamine, Cannabis, Benzodiazepines, barbiturates and Methamphetamine.