I'm using Oxypowder . Yes, it is expensive but constipation has been a lifelong problem for me. It's serious. I don't want to continue worrying every time that I travel if I am going to be constipated the whole time. I am almost through with a 7 day cleanse with Oxypowder . I think that food is now going through my system. It will be worth every penny. Read the Oxypowder and cayenne pepper posts.