They have a product at GNC (behind the counter -$40) that worked for me (benzos). I also have some tests and cleaning products that I got from www.passinganydrugtest.com - haven't had to use, but money back guaranteed. Type in "drug testing" in your search and a lot of different sites and information will come up. Also, certain OTC meds can cause a false positive, such as night time PM. I take Trazodone occationally and it can make a test show up positive for benzos. Make sure you list anything you take upon taking the drug test.