Give your pup the relief they need from fleas and brown dog ticks with Hartz UltraGuard Pro Flea & Tick Dog Shampoo. Designed to wash away your dog?s troubles this triple-action shampoo kills fleas and brown dog ticks through contact while also preventing re-infestation by stopping flea eggs from hatching for up to four weeks. The rich conditioning formula cleans and deodorizes all in one easy step. Made for dogs or puppies 12 weeks of age and older.