|Sentry Natural Defense Flea & Tick Squeeze-On is highly effective, yet they're safe for use around your pets and your family when used as directed. Over hundreds of millions of years, certain plants have developed highly effective defense mechanisms against potentially harmful insects. The exclusive formulations that feature these ingredients are harmless to mammals, birds and fish — but they're deadly to biting pests.
This product is comparable to Frontline.
Kills fleas, ticks and mosquitoes for up to four weeks
Safe to use on your dog and around your family when applied as directed