What are the pros and cons of hair test?

Answer 1

Best Answer - Chosen by Voters

Pros: Hair Drug Testing kits have a very long drug detection window. For most drugs it can detect drug use about 90 days or more. This testing method is very donor friendly. Adulteration is a lot more difficult in hair drug testing than any other test method. The hair test is very dependable and accurate.
Cons: The main disadvantage of hair drug testing is the fact that you need a lab to run the test and generate the results. Because of this extra step it might take a few additional days to get results. Another disadvantage of the hair drug test is the fact that it might not detect very recent drug use. Hair drug test kits are usually the most expensive drug test kits due to the need for lab testing. If hair follicle test suits your requirement and want to know more information about it, check it out below

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http://www.testcountry.com/details.html?cat=3

Answer 2

pro = they cant drink certain things to get it out of their system. Im not sure of the cons except it might not be 100% accurate. Im not sure tho.