[krob]

I've had many cats in my lifetime. All the ones I had which we used flee collars eventually died of some breast tumor/ liver/kidney failure early in life around 5 cats died under 5 to 6yrs. We eventually stopped treating fleas, we just washed them, and sprayed our home, it was a much smarter solution. our last batch of 4 siamese all lived into their late teens, having never been given flea products.

[ianai]

How often do you need to wash them for it to be effective?