this fast-acting, long-lasting, waterproof formula kills and repels fleas, ticks, and mosquitoes – all while breaking the flea lifecycle by killing flea eggs, flea larvae, and chewing lice for up to 30 days. *advecta® ultra is not manufactured by or distributed by bayer. do not get in eyes or on skin or clothing. harmful if absorbed through skin. wash hands thoroughly with soap and water after handling and before eating, drinking, chewing gum, using tobacco or using the toilet. for …