Cansford Labs - The Drug and Alcohol Testing Blog

Behind the scenes of a hair drug test: What really happens in the lab

Posted by James Nutt on Jul 19, 2016

The hair sample has been taken and is on its way to the lab. For donors, it’s now a waiting game to see the outcome of the analysis. But what exactly is it a drug testing lab does to detect drug and alcohol use in just a few strands of hair? 

In the space of a couple of days, labs can analyse hair and reveal a donor’s drug use dating back months. The reports labs produce evaluating drug use can be extremely accurate, measuring drug use right down to the picogram level.

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