Very true. I dated a guy for awhile that worked at GNC. They sold about as much of that stuff as they did anything else. Especially b/c he worked in a downtown location. Lol, all the businessmen sweating bullets finding out they have to take a piss test would come to him for help.

Last time I was in there the guy working there told "my friend" (sorry, just kidding) to take a multivitamin or two at the same time as the cocktail so your pee doesn't come out too clear and set off red flags.

As an someone who works for an employer that processes drug screens a lot, the urine tests aren't that accurate (like someone else said), but they are the cheapest. Also instant tests can be really faulty. But in general, THC stays in the system about 3 weeks unless the person is overweight or a habitual smoker. Then it can take a long time to be out of the system. The tests are more accurate but a lot more expensive. Generally companies that do the hair tests are smarter than to take hair from your head, (unless that is the only option) They usually take the hair from an arm or leg.