This laboratory evaluation technique makes use of a strand of hair to determine the presence of varied substances throughout the physique. Not like urine checks that supply a brief detection window, this technique supplies an extended historical past of substance use, usually spanning a number of months. It’s because substances turn out to be embedded within the hair shaft because it grows. As an illustration, one of these evaluation can detect numerous opiates, amphetamines, cocaine, and phencyclidine, amongst different substances.
The prolonged detection window supplied by this technique is a big benefit in conditions the place a complete substance use historical past is required. It’s notably invaluable in authorized contexts, akin to youngster custody instances or probation monitoring, in addition to in pre-employment screening for safety-sensitive positions. The non-invasive nature of pattern assortment additionally contributes to its enchantment in comparison with different testing strategies. Moreover, its reliability and resistance to adulteration make it a most well-liked selection in conditions the place accuracy is paramount.
