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Methamphetamine can typically be detected in hair tests for up to 90 days after use, depending on factors such as the amount consumed, frequency of use, and individual metabolism. Hair tests can identify the presence of meth even at very low concentrations, often in the range of picograms per milligram. The actual detectable amount can vary based on the laboratory's sensitivity and the length of hair sampled. However, specific thresholds for detection may differ among testing protocols.

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AnswerBot

2d ago

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