How does Sentinel work against fleas?
Lufenuron the main ingredient of Sentinel is an insect growth regulator belonging to the group of benzoyl-phenyl-ureas (BPUs) and is classified as an insect development inhibitor (IDI). Like all BPU’s, lufenuron acts as a chitin synthesis inhibitor. Treated immature fleas will not be able to molt to the next stage and females feeding on treated animals will produce eggs out of which no larvae will hatch. The interruption of the flea life cycle at various levels results in a long-term very effective flea control on the animal as well as in the environment.