You thought that wild weekend from months ago was ancient history? Think again. While blood tests only catch drug use from the past few days and urine tests stretch to maybe a few weeks, there’s a ...

Hair analysis could be the key to understanding adolescent drug usage, as a new study uncovers almost double the number of children were found to be using substances than those who admitted to in a US ...

The trucking industry’s decade-long push for hair follicle drug testing is reaching a critical inflection point as the Trump administration prepares to address guidelines that have been delayed ...

DALLAS, June 21, 2024 (GLOBE NEWSWIRE) -- Psychemedics Corporation (NASDAQ: PMD), a global leader in hair testing for drugs of abuse, proudly presents its inaugural Insights Report. This ...