Is the Hair Drug Test laboratory able to distinguish between d and L methamphetamine?
L methamphetamine can be found in Vicks inhalers, as opposed to d methamphetamine, which is found only in the controlled substance. The lab has the capability to distinguish between d and l methamphetamine in hair. This distinction clearly becomes important when an individual contests a positive methamphetamine result, and allows the lab to certify a result with certainty.
