Liquid-Vet K9 Flea & Tick + Support Formulas help to protect your dog from unwanted pests and are guaranteed EFFECTIVE against fleas, ticks, and mosquitoes. Liquid-Vet K9 Flea & Tick Formulas are made with a blend of natural ingredients, so have no harsh chemicals or smells and do not leave a greasy residue. Plus, Liquid-Vet K9 Flea & Tick + Support Formulas are EASY to apply...simply apply evenly into your dog's coat 1x/week. And how about safety? Liquid-Vet Flea & Tick+ is manufactured at our own plant located in the USA, using materials only from our qualified USA based suppliers, AND is made with food grade ingredients so are safe around BOTH you and your pets! This Holistic Formula contains Eugenol, Geraniol, Thyme Oil, Lemongrass Oil, Peppermint Oil, and Rosemary Oil that contain natural insect and pest repelling properties. No harsh chemicals are added so you can ensure that they are safe for your pups and you as well!