Natura Petz Organics Stone Breaker Starter Pack Cat Supplement, 30 count
We tried this product cause one of our cats was having trouble going to the bathroom. We already lost 3 of our cats to crystals so we thought why not. After the first time it seemed to have helped because he wasn't crying out in pain, but after giving it to him he finally was able to go pee without crying. Man did he pee... He seemed to have a sign of relief on his face.