The two companies involved in conducting a flawed hair test in the Phi Kappa Psi case have drawn criticism for their work on several other cases prior to working with the University. The Carlson ...

Michael Schaffer is an outgoing board member on the Department of Health and Human Services’ Drug Testing Advisory Board. He is vice president of laboratory operations for Psychemedics Corp., a major ...

Congress pressures HHS to finalize hair testing guidelines and shift oversight to SAMHSA to combat the "niche industry" of ...

Scientists mixed extract from a spiny South American shrub with compounds from ocean seaweed and created something cosmetics companies spend millions trying to perfect: a formula that makes hair ...

Over the past few years a number of companies have sprouted up offering hair analysis. They advertise drug, allergy, food intolerance and metal exposure assessments, and all you have to do is send in ...

Add Yahoo as a preferred source to see more of our stories on Google. Treating hair loss is a multi-billion dollar business, so scientists (and many others) are interested in understanding how to ...