Psychemedics Corporation is a hair drug testing company. The Company provides testing services for the detection of drugs of abuse through the analysis of hair samples. Its testing methods utilize a patented technology that digests the hair and releases drugs trapped in the hair without destroying the drugs. The Company customizes its enzyme immunoassay (EIA) procedures to drug test hair samples. It provides screening and confirmation by mass spectrometry using industry-accepted practices for cocaine, marijuana, phenylcyclohexyl piperidine (PCP), amphetamines (including ecstasy, eve, and Adderall), opiates (including heroin, hydrocodone, hydromorphone, oxycodone and codeine), synthetic cannabinoids (including K2, Spice, Blaze), benzodiazepines (Xanax, Valium, and Ativan), nicotine, Fentanyl, and alcohol. The Company markets its corporate drug testing services through its own sales force, distributors, and partners. It markets its home drug testing service, PDT-90, through the Internet.