K9 Flea Control
The K9 FLEA CONTROL is a monthly product that keeps new fleas from developing. It does not kill live fleas. It is referred to as a flea "birth control". It's a chitin inhibitor, which means it keeps flea larvae from developing an exoskeleton. This ends up making the flea larvae die before they can become a flea. It takes a few weeks to start seeing the full benefits of the flea control.