recently, prior to graduation. i took a graduate based course in medicinal chemistry. from what i seen its pretty easy to screw up a hair test depending what method of testing is being performed. BUT, if done correctly, hair tests can easy become your enemy....
i did notice something, however, i know someone who needed a hair test. the individuals sample should have made the instumentation go threw the roof. to be more specific, x and coke SHOULD have came up without a problem. either the technician loused it up, or nioxin may help rinse those things. is that possible? he was on a cycle and hitting his head with just about everything nioxin makes. NOTHING came up in the test what so ever. just makes you wonder i guess.