Say goodbye to fleas and tick with Hartz UltraGuard Plus Flea & Tick Drops for Dogs and Puppies. Each convenient and easy to apply single dose tube kills fleas brown dog and deer ticks flea eggs and repels mosquitoes for 30 days. Features the patented Pro-cision Flo applicator system that penetrates pet hair allowing for application of treatment at skin level. Contains both an adulticide to kill adult fleas ticks and mosquitoes and an insect growth regulator (IGR) to kill flea eggs before they hatch. Formula stays on and doesn?t rub off. Use only on dogs or puppies 16-30 pounds 12 weeks of age and older. Package contains 3 monthly applications.