The solution contains the active substance Indoxacarb which works using a process called bio-activation. This mode of action uses enzymes inside the flea to activate and produce an active compound that interferes with the flea's nervous system.

Once activated, Activyl will not only kill adult fleas but also break the flea life cycle and prevent eggs developing into larvae.

Each 0.51ml pipette contains 99.45mg Indoxacarb.