Certo and detox drinks/pills "work" because of the amounts of water consumed with them.
Detox drinks are nothing more than an overpriced dilution method in-a-bottle while the so-called "Pectin method" is nothing more than a back-alley variation of those detox drinks.

The actions of these products can be duplicated for a fraction of the price by following the guidelines in this link: http://boards.cannabis.com/drug-test...uidelines.html