For dogs 61 lb & over. New formula with vitamin E. Fragrance free. 3 month supply. 3 applications. Kills fleas in as little as 1 hour; ticks in as little as 3 hours; flea eggs; flea larvae. Controls reinfestation for up to 9 weeks. Sergeant's Evolve 40 Flea & Tick Squeeze-On for Dogs is an effective and easy to use product. As with all flea and tick control products, Sergeant's Evolve 40 Flea & Tick Squeeze-On for Dogs should be used as part of a program aimed at reducing flea populations in the dog's environment (bedding, carpets, kennel, yard). Made in USA.