Does HairConfirm cover a certain period of time?
HairConfirm screens for drugs that have been used within 90 days of obtaining the hair sample, as opposed to drug tests that require a urinalysis and have a smaller window of detection. Every half-inch of hair indicates drug use in the previous 30 days. HairConfirm uses 1.5 inches of hair to detect the presence of drugs in a 90-day time span. It is very important that hair samples for hair drug tests be taken as close to the scalp as possible so the most recent drug activity is detected.
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