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Hair drug testing involves analyzing a small hair sample to detect drug use over a longer period (usually up to 90 days).
It detects drug metabolites deposited in the hair shaft from bloodstream exposure.
Common drugs screened include marijuana, cocaine, opiates, amphetamines, and PCP.
Hair drug testing involves analyzing a small hair sample to detect drug use over a longer period (usually up to 90 days).
It detects drug metabolites deposited in the hair shaft from bloodstream exposure.
Common drugs screened include marijuana, cocaine, opiates, amphetamines, and PCP.