Hi there
Stronghold kills adult fleas on your cat and also prevents flea eggs from hatching, breaking the flea life cycle. However, it does not kill larvae or pupae in the environment, so you may still see fleas emerging until all life stages are dealt with.
It helps prevent reinfestation, but for a complete solution, treating your home and environment is recommended alongside using Stronghold.
We also do recommend consulting with your vet before to insure that this will be effective on your Furr baby.
By Marion on 06 Jul 2025