This laboratory evaluation technique makes use of a strand of hair to establish the presence of assorted substances throughout the physique. Not like urine assessments that provide a brief detection window, this technique supplies an extended historical past of substance use, sometimes spanning a number of months. It is because substances grow to be embedded within the hair shaft because it grows. As an illustration, this kind of evaluation can detect varied opiates, amphetamines, cocaine, and phencyclidine, amongst different substances.
The prolonged detection window supplied by this technique is a major benefit in conditions the place a complete substance use historical past is required. It’s significantly invaluable in authorized contexts, corresponding to baby 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 popular alternative in conditions the place accuracy is paramount.
