I remember using the hartz dog shampoo three times. Twice were on my dog and once was when I when my friend had ask me to dog-sit his pup. Whenever I had used this shampoo on the pups, I would end up feeling dizzy in the bathtub and start wheezing after. I didn’t realize it was the dog shampoo and thought I was just allergic to dogs possibly. However, I had no issues with other shampoos. There is definitely something toxic in the shampoo. I had thought it was just me, but seeing this website has made me realize I should also share this story.