VetOne - CrossBlock II Kills & Prevents Fleas on Dogs & Puppies (11-20 Lbs)

I switch brands of flea medication on my dog, I haven't had any work 100%. It's a constant battle in the summer.

VetOne - CrossBlock II was recommended by our vet. We've been using this brand for years. It works well and we haven't had any troubles or infestations since we've been using it. I would recommend CrossBlock.

Better then Frontline and every single thing out there. I was going broke trying to find a solution to the flea problems I decided to try this and three years later I put a dose on when I see the first flea and instantly fleas jump off him or die I love it and 4 times cheaper then Frontline and all the major brands. Hands down the best ever. I will continue to use this brand. It seems fleas are getting use to Frontline etc. But 4 years later using crossblock it now fleas instantly. I'm so glad I tried this brand. Thank you crossblock

I did some research and found that all of the flea meds have the same chemicals in them. The more expensive ones come in the super glue like tube that makes it easier to disperse on the dog's neck, but to me it's not worth the markup. This medicine keeps the fleas off our little dog in the summer months, and works great. Will keep repurchasing this brand in the future.

Worked great for 1 week then the fleas came back on my animals so had to buy Adventix to solve

Works just fine.

I really like this for my pup. She had such an allergic reaction to fleas and was miserable. We got this to help remedy to get her some relief and this has worked wonders. She had gnawed places on her coat and was losing hair and now after 3 months of consecutive use she doesn’t have any issues with fleas and her coat looks beautiful.

I use it forflea control on dogs and cats.