Using Hartz, Sargeants, Zodiac, etc.

Here's my post from facebook because it needs to be repeated. Again. And again. And again. Do not buy bargain flea treatments like Hartz, Sargeant's, Zodiac, etc. You are killing your pet along with the fleas. Research is out there. The companies refuse to stop selling because so many people keep buying. Stop it!  One source to see for yourself: