I don’t have experience with the one you posted, but I do have experience with the one from LittleCityDogs.com. I learned about it from reputable rescue groups I work with and when they gave me some for the puppies I was fostering at the time it worked wonders. I buy their generic Capstar and monthly preventative. I open the capsule and sprinkle it on my dogs’ food. It’s gentle and I have never had issues.
There was some heat on them (from the big companies) for their use of using “the same ingredient as Capstar/Program” on their products but that’s all it was. They changed the wording and are good to go.
