Have drug testing questions? Get answers from Experts
Hello this is Dr. Salama MD,
The general consensus is that cocaine can be detectable in the hair for up to 90 days.
For chronic users of cocaine, it can be detected in the hair shaft much longer.
Each inch of hair can detect that past 60 days.
So 1.5 inches in your case will pick up the past 90 days and you should be fine.
Let me know if you have any other questions.
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