I am not sure. I got mine from the vet, but I can't remember how much it was from her. I do have to say that a small amount goes a long way, so it is well worth it. Like I mentioned before, I clean Tubs with it maybe every 2 weeks and he has been looking beautiful. No dirty/yeasty nose rope, beautifully pink ears and clean folds on his face with no tear stains!Does $20 sound right for price?? I just looked it up on Amazon. Anywhere to get it cheaper?