Psychemedics Corporation, headquartered in Acton, Massachusetts, offers testing services for the detection of drugs of abuse through the analysis of hair samples in the United States and internationally. The company employs industry-accepted practices for screening and confirmation by mass spectrometry and can detect a variety of drugs, including cocaine, marijuana, and PCP; amphetamines, such as ecstasy, eve, and Adderall; opiates, including heroin, hydrocodone, hydromorphone, oxycodone, oxymorphone, and codeine; synthetic cannabinoids like K2, Spice, and Blaze; benzodiazepines such as Xanax, Valium, and Ativan; and nicotine, Fentanyl, and alcohol. The testing results provided by Psychemedics Corporation are quantitative, indicating the approximate amount of drug ingested, as well as historical, revealing a pattern of individual drug use over a longer period-of-time. These services are valuable to employers for applicant and employee testing, as well as treatment professionals, law enforcement agencies, school administrators, and concerned parents. Founded in 1986, Psychemedics Corporation has established itself as a leading provider of drug testing services utilizing hair samples.