Ultimately, the decision of which type of drug testing to use should be based on the individual’s needs and budget.” This type of drug test is used to detect the presence of drugs in a person’s system by analyzing a sample of their hair. The test is highly accurate and can detect drug use up to 90 days prior. The science behind hair follicle drug tests is based on the fact that drugs and their metabolites are absorbed into the bloodstream and then deposited into the hair follicles. The metabolites are then incorporated into the hair shaft as it grows.
This means that the drug metabolites can be detected in the hair for up to 90 days after the drug was used. The sample is then sent to a laboratory where it is analyzed for the presence of drugs and their metabolites. The laboratory will use a variety of methods to detect the presence of drugs, including gas chromatography/mass spectrometry (GC/MS) and enzyme-linked immunosorbent assay (ELISA). The hair follicle drug test is highly accurate and can detect a wide range of drugs, including marijuana, cocaine, opiates, amphetamines, and PCP. It is also able to detect the presence of alcohol, although this is not as common. It is also non-invasive and relatively inexpensive compared to other types of drug tests.
However, it is important to note that the test is not phengold reviews foolproof and can produce false positives. This is because the test is not able to differentiate between drugs that have been ingested and those that have been absorbed through the skin. In addition, the hair follicle drug test is not able to detect drugs that have been used within the past few days. This is because the drug metabolites take time to be incorporated into the hair shaft. Therefore, if a person has used drugs within the past few days, the test may not be able to detect it. Overall, the hair follicle drug test is a reliable and accurate way to detect drug use.More info here