Dont listen to the people talking above......ive passed sooo many lab test....not just standard tests...using the gnc drink. First off dont workout, youll release the thc in your fat. Go to gnc, get the drink made by qcarbo. Its a giant bottle i think the biggest that comes in grape and fruit punch. Drink that exactly two hours before the test and do nothing but drink water and drink water right up until test. I guarantee youll pass just relax because stress releases thc too.