Dirty Paws Dog Shampoo is the only 100% natural dog shampoo on Earth! I know that is quite a claim, but if you can find another 100% natural dog shampoo, please let us know. We have been making this 100% natural dog shampoo for our dogs since 2004. We have received thousands of rave reviews, many saying that it treats their dog's skin better than medicated shampoos. Try it and you will see why it is the best dog shampoo on Earth!