TropiClean SOOTHING Natural Flea & Tick Shampoo is effective against fleas, ticks & mosquitoes, while cocoa helps to soothe irritated skin. Up to 7 days of protection. This natural blend of oils contains natures most powerful pest deterrents, maximized with lemongrass and sesame oil, for long lasting effects. Safe enough for routine pet baths on dogs and puppies 12 weeks and older.