Hartz Topical Flea & Tick Prevention The patented Pro-cision Flo applicator easily penetrates short and long fur for application directly to your dogs skin Includes 3 monthly treatments in easy to apply, single dose tubes Fast-acting topical drop formula kills fleas, flea eggs, deer ticks and brown dog ticks, plus repels mosquitos for 30 days Contains both an adulticide to kill adult fleas, ticks and mosquitoes and an insect growth regulator (IGR) to kill flea eggs before they hatch For use on adult dogs and puppies 12 weeks of age and older Monthly treatment kills and repels fleas and ticks for up to 30 days Kills mosquitoes, plus kills and prevents flea eggs Use only on dogs over 12 weeks of age Do not use on cats or kittens Package contains 3 monthly treatments