Mythbusters has tested it, Dateline NBC has tested it with German shepherds and I am sure other shows have tested it as well. The military has tested it. Independant scientists have tested it.

All come to the same conclusion in that it does not, has not, will not eleminate your scent.

The only folks that stand firm that it does work are the people that manufacture it, the people that get paid a lot of moneyto wear it,and the people that have paid hundreds of dollars for it (and some of these folkshave figuredout that it does not work).