Absorbine UltraShield Red kills and repels in 5 different ways. Contains five active ingredients for broad spectrum control. Kills and repels flies, gnats and mosquitoes for up to 7 days. Protects against horse flies, stable flies, face flies, horn flies, deer flies, house flies, black flies, barn flies, cluster flies, sciarid flies, gnats, midges, punkies, no-see-ums, chiggers and fleas. Also kills ticks. Use on horses, ponies, llamas, alpacas, mules and donkeys. Absorbine UltraShield Red contains 0.90% permethrin, 0.25% tetramethrin, 0.025% pyrethrins, 0.10% cypermethrin and 1.0% piperonyl butoxide.