How does the toxicological tests of hair? ?!

Question: How does the toxicological tests of hair.? .?

What a site that explains in detail this test.?Health Question & Answer

Answers:

http://en.wikipedia.org/wiki/Hair_analys...

You cannot shampoo out toxins or drugs. They are in your hair. Sorry.Health Question & Answer

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How does the toxicological tests of hair? ?!

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