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Before you begin, it is best for the subject to have washed their hair recently and for it to be free of styling products as well. Keep in mind, it takes 4-5 days for more recent drug use to be in the hair follicle and therefore only the use that occurred before that time will [...] For a long time, urine drug testing has been the standard method of evaluating a person’s drug use in places of employment, sports, play and schools. However, despite all its advantages, urine drug testing still falls short when compared to other more advanced techniques. Hair follicle drug testing is one such technique, which, while still [...] Hair follicle drug testing involves taking a sample of hair from the subject and drug testing it for trace amounts of certain materials, which indicate that drug use has occurred. This form of testing works by detecting and measuring the drug molecules and their specific metabolites that are left behind in the bloodstream after specific [...] |
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