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Hair Follicle testing is the superior method for determining substance abuse. This highly accurate drug testing technology offers a wide range of detection time frames that can approximate the pattern and quantity of drug use.

  • THC
  • Opiates
  • Amphetamines
  • Cocaine
  • PCP

This panel provides the following testing time frame options:

  • 30 Day
  • 60 Day
  • 90 Day
  • 180 Days (6 Months)
  • 365 Days (12 Months)


How soon after use can a drug be detected in hair?

It takes approximately 5-7 days from the time of drug use for the portion of the hair containing that drug to grow above the scalp.

How much hair is needed?

To complete a standard 90 day hair follicle test, a minimum of 1.5 inches is required (0.5 inches per month). The amount taken is usually cosmetically undetectable and can be compared to the thickness of a shoelace tip.

If I do not have sufficient head hair, can body hair be collected?

Canadian Screening does not accept body hair as an alternative collection method when head hair is unavailable or insufficient.

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