PYthon II Dust is the only dust to contain two novel active ingredients for maximum efficacy against all major livestock ectoparasites.

Zetacypermethrin is a 5th generation pyrethroid with enriched S-isomer content that is highly active against horn flies, face flies, ticks and other pests.

Piperonyl butoxide is a mixed-function oxidase inhibitor that helps overcome metabolic resistance in insects and and synergizes the zetacypermethrin for maximum efficacy and residual activity.

PYthon dust contains a photostable formula of piperonyl butoxide for long-lasting activity in sunlight.