DeTour'sactive ingredientis white pepper. White pepper is used since it does not require EPA registration while it delivers the heat units necessary to irritate rodents. Once a rodent has come in-contact with DeTour they cannot remove the product from their fur. The DeTour provides a constant irritation that causes the rodent to try to vacate the area. It totally changes the rodent natural responses including a reduction in their trap-aversion making them easier to control. DeTour is huge success with Pest Control Operators who are finding the product invaluable in their attempts to control rodents.