4Fleas Dual Action Flea and Lice Spot On For Dogs ---Johnsons 4fleas Dual Action Spot On for Dogs is an active treatment to help kill fleas and larvae. ---•Dual action Kills flea larvae within 20 minutes of contact in the area around your pet, including their bedding, resting areas etc. ---It is a highly effective, rapid, monthly spot-on treatment to help stop flea biting in just 3-5 minutes. ---•Kills 98-100% of fleas within 12 hours ---•Active ingredient - Imidacloprid help kill flea and larvae on contact.
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