I always used other Hartz shampoos ( the purple and the pink ones) but a couple months back I bought the tick and fleas one since dogs been hanging out more outside and in dog park due to the quarantine. My Pomeranian’s hair started to fell off immediately after using it, thought was normal shedding but she has never lost so much hair like now. She has also been looking sick, hope she will be okay. My daughter just shared information she found with me about the shampoo and I found this page, lot of sad stories. I will be throwing this product away.