Advantage® II Now Contains an Insect Growth Regulator (IGR) Pyriproxyfen.
This effective formula kills all flea life stages within 12 hours,
including eggs, to interrupt the flea life cycle in multiple stages,
prevent fleas on treated dogs from infesting the home, control
existing flea infestations on cats and prevent further infestations.
Easy to put on and take off, step-in style fabric harnesses
lined with lightweight, breathable mesh to keep dogs cool
and comfortable. Dual D-rings and a snap-lock buckle. NEW COLORS! (Pink Paisley & Plaid)