TropiClean Natural* Flea & Tick Maximum Strength Shampoo for Dogs kills fleas and ticks by contact. Formula contains some of nature’s most powerful pest fighting ingredients and is maximized with lemongrass oil for long-lasting repellent effects. When used as directed, shampoo is suitable for routine pet baths and helps to repel pests for up to 7 days. TropiClean Pet Products are cruelty free.                                *Made with natural active ingredients                                                                                       Long-Lasting Pest Protection — Maximum Strength Shampoo helps kill fleas, ticks, larva, and eggs by contact and repels fleas for up to 7 days.