Product details:

This convenient, long-lasting formula begins working immediately upon application to quickly and effectively kill and repel fleas??ìincluding eggs, larvae and pupae, ticks, mosquitoes, chewing lice and biting flies. The powerful combination of highly-effective fipronil, permethrin and pyriproxyfen continues to safely protect your furry friend for up to four weeks. Waterproof and UV-resistant, this easy-to-apply liquid solution remains effective even after bathing, shampooing, water immersion or exposure to sunlight.