A hair drug test is quickly becoming a popular choice for drug testing and for many employers, the preferred drug testing method for pre-employment and random testing. It is now commonly used for probation and court ordered drug testing. Many different drugs can be detected with hair drug testing. Traditionally we’ve tested hair for the 5 panel drug test, the 8 or 9 panel drug test, and even the 12 panel drug test. But now we are able to offer the most comprehensive hair drug test on the market today, the 17 panel hair drug test.