This laboratory evaluation technique makes use of a strand of hair to determine the presence of varied substances inside the physique. In contrast to urine assessments that provide a brief detection window, this technique offers an extended historical past of substance use, sometimes spanning a number of months. It’s because substances develop into embedded within the hair shaft because it grows. As an illustration, the sort of evaluation can detect varied 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 helpful in authorized contexts, resembling youngster custody circumstances 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 alternative in conditions the place accuracy is paramount.
