"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." DIY dye may have gotten a bad rap in the past, but you no longer have to sacrifice professional-level ...

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 ...

Hair follicle drug tests involve removing a small hair sample for laboratory testing. Results can show if a person has been using certain drugs or prescription medications in the previous 3 months. It ...

It has been more than six years since Congress mandated that the Department of Health and Human Services adopt a drug testing rule allowing the use of hair samples to drug-test drivers and other ...