Do you have a dog or a cat. What about a gerbil or a rat. If you are brave enough to dunk it this soap could be for you. This is our pet soap which is traditional Castile. Like it was invented in the Castile region of Spain. Simple all natural ingredients. Sodium Hydroxide (lye), raw goat milk, spring water, olive oil, and peppermint oil. Peppermint oil is a natural flea repellant. It leaves your animals coat shiny and soft. It is a super moisturizing bar.