Those magic potions that claim "permanent detox in 3 days, 5 days, etc." are the biggest scam of all the other magic potions. The claims are nothing but sales pitches designed to lure in the credulous and uninformed and separating them from their cash. Dont fall for it.

THC is fat-soluble, not liquid soluble. Therefore theres no product of any kind that can permanently rid the body of THC. Only time and fat-burning exercise can accomplish that.

ALL magic detox potions work by dilution. They work because of the fluids that are consumed with them. By ingesting fluids, you are in effect diluting the concentration of THC metabolites thats present in the bladder.
The goal is to reduce that concentration enough for the urine sample to register below the cutoff threshold of the drug screen - but not too much to cause the sample to be flagged for being overdilute. Its a balancing act and the actions are only temporary. Once all of the fluids taken in had been voided out, a "dirty" donor will resume testing positive for THC.

The actions of the magic potions can be duplicated for $$$ less by following this link: http://boards.cannabis.com/drug-test...uidelines.html

Drinking a bunch of fluids days before the U/A is of no help. It may make you urinate frequently, but the rate in which THC metabolites are deposited in the bladder by the kidneys (after being filtered from the bloodstream) remains unaffected. Therefore dilution techniques, in any configuration, are only effective on the day of the U/A.