the "drugtest cleansers" etc. industry is full of false promises, and, in my experienced opinion (retired truckdriver with about 21 years of drugtesting behind me) they are ALL scams ... modern drugtesting, even the simple urine tests, not only find what they're looking for, but also scan for 'masking agents' ... generally, a drugtest is an overall scan for the several drug types ... these overall scans aren't that precise, but, if a positive result is found, a gas chromagraph test, etc. will be done on the sample, and there's no beating it ... it really all depends on how much money the employer, etc. wants to spend ... fortunately, most employers aren't all that crazy about spending money on the more advanced tests, they're blackmailed into testing by their insurance companies ... save your money: abstain for 4-6 weeks, get lots of exercise, and sweat it out ... :smokin: