I'm not sure what OtiRinse has in it, but I will tell you what I started using recently and works really well. I use about 1/3-1/2 cup of warm water mixed with 10-12 drops of Lavender Oil. I mix it right before I use it in the ear. It was a reccomendation from the dogs' homeopathic vet after using regular ear cleaners for a long time and not seeing much result.