Deliver powerful action and fast control with surgical placement indoors or outdoors. Eliminate ant colonies seven days quicker than any competitor with a thicker formula that stands up where you need it. Get the fast-acting formulation of ant control you've come to depend on. Long-lasting and fastest-acting. Contains fipronil, which is the active ingredient of choice for effective ant control. Thicker consistency enables it to stay where it's applied — even on vertical applications. Offers broad-spectrum ant control on notoriously difficult-to-control species, including Argentine ants, carpenter ants and odorous house ants. Formulated for ant trophallaxis, which allows foraging ants to return to the colony and feed the the bait to larvae and the queen(s) so the entire colony is eliminated.