Has anyone ever used Heartworm Free from Wolf Creek Ranch?

I use it on all four of my dogs. One was heartworm positive ( my husband then boyfriend at the time didn’t think they were real). I used it on her and three months later we went back in for a test- she was negative! I am the biggest fan of this product! I highly recommend it!!! Also wanted to mention that she lived her normal life during treatment- no crating etc…. It is an amazing product!!!