sentry natural pet collar

Flea and Tick Prevention Part 3: Sentry Natural

Sentry Natural works under the same principle as Triple Sure which I blogged about in a previous post ( in that the active ingredients in its formula block the neurotransmitter octopamine, thereby killing insects almost instantly. Since octopamine is found only in insects, the product is safe to use around pets and people “when used as directed”. I used Sentry Naturals on my dog, Dingo, a few weeks ago after finding about twenty ticks on her post-hike. My first reaction was that the product had an unusual and unpleasant odor that wears on you the longer you are forced to inhale it. It also left an oily, yellow residue all over the application site of my white dog. Quite honestly, it looked as if Dingo had been urinated on by another, bigger dog. I thought (hoped) that the foul smell might wane after a few days. Unfortunately it did not. The smell was so pungent that my fiance, who normally revels in snuggle time on the couch with Dingo, did not even want to be near her. After a few days I gave her a bath, but the residual scent, although milder, remained. In addition to smelling awful, I also found a couple ticks imbedded in my dog’s skin within several days of applying. Needless to say I will not be purchasing this product again. I give it a giant fail. Additional product information (if you are still interested despite my poor review) can be found here:



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