I have been reading other stories here on how terrible HARTZ products is, I am here to tell you it is true!  Please Do NOT use this product to try to save money.  It will possibly cost you more and even your beloved pets life.   I used a flea and tick application on my 28 lb. Boston Terrier.  Right away I did not like how the product was applying.  I did wait a day before bathing him, to try to get this off of him.  I again bathed him 2 days later.  Still that weekend he was getting crusty soars all over him.  He also has been licking almost non-stop.  I too felt awful, for putting a cheap product on my beloved pet.  I did take him to the vet where I was notified of how bad this product is.  They told me to wash him in Dawn dishsoap, the one they use on the seals that got oil on them.  I have done this multiple times over the past month. (about 1 time week per vet)  But, he is still getting soars on him, they appeared on his belly, in his ears, back, feet, legs, tail, between his eyes, neck, and yes even on his peter.  I hope with time the product will leave his system.  Hopefully he will do a full recovery.


So, to Hartz COMPANY OWNER:  Do you have pets?  Do you use your product on them?  Now reading all of these horrible things that can happen to what seems to be cats and smaller dogs.  Will you use your product?  I hope you would not!!!

Thanks to everyone that may have read my post.  Talking with my vet, this is something that has been being fought for years.  What for reasons I DO NOT UNDERSTAND WHY THIS IS STILL ON THE MARKET!!!

Thanks, Michelle Collinsworth


  1. Why are you addressing the owners of Hartz from this forum??? That does no good at all. If your going to take the effort to do it at least it gets addressed to the correct company Here is the contact info please write them a letter

    HARTZ Contacts

    Consumer Relations Department
    The Hartz Mountain Corporation
    400 Plaza Drive
    Secaucus, NJ 07094 USA

    Associate Director
    Consumer Relations and Technical Services
    The Hartz Mountain Corporation

    The Owners of Hartz
    Current contact info:
    Sumitomo Corporation of America (SCOA)
    Atsushi Nishijo Executive Vice President
    General Manager for the Americas
    Director & President, Sumitomo Corporation of America
    There Amerciacn offices-
    New York (Headquarters)
    Sumitomo Corporation of America
    600 Third Avenue
    New York, NY 10016-2001
    Tel: 212.207.0700
    Fax: 212.207.0456
    Web site http://www.sumitomocorp.com/
    Email contact at http://www.sumitomocorp.com/contact.html

  2. i used hartz product for fleas awhile ago and my cats got sick from it i will NEVER use ANY hartz products again this issue has been going on for quite awhile i cannot understand why it is still on the shelves in the store they need to get rid of these products and fast.

  3. I have a boston who is 10 months old and 15lbs. He got this rash with red pimples all over his stomach and in his armpits about a month ago. It developed in pustules eventually which cleared up last week. Today I noticed he started getting it again…and so I thought, I wonder if its the flea stuff I bought from Wal-mart. It’s consistent with the 2 doses I have given him. After reading your post I’m feeling slightly relieved that I may actually know the cause so I can stop it from happening. My Mom uses the same stuff on her dog and has never had any side effects. We live in Ontario and I was wondering if this is effecting both sides of the border?

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