Comes in a handy spray bottle with trigger nozzle.Is an extremely safe but effective water based insecticide and insect growth regulator that gives three way protection for all avian species. When used directly on the bird, A.I.L. penetrates deep into feathers to kill mites and lice. When sprayed around the environment A.I.L. kills insects on contact and the residual action guards against re-infestation for up to six weeks.