Psychemedics Corporation pioneered the use of hair testing for drugs of abuse over 30 years ago and continues to offer the most effective hair testing technology based on scientifically validated drug testing methods. Psychemedics continues as the world leader setting industry standards for sensitivity, robustness, defensibility, and consistency, and continues to advance the science of hair testing. Psychemedics’ clients include over 10% of the Fortune 500, some of the largest police departments in America, Federal Reserve Banks, and schools.