I found a website where they actually show colored pictures of before and after pictures. The professional machines must be stronger than our homemade ones (though I'm keeping mine) because I have to use mine for 45/60 minutes in order to have the water change to dark red. They also recommend only using the footbaths 2-3 times per week and I was using mine twice a day every day. I had pressing health issues and thought it would speed up the healing. I'll try the 2-3 times per week and see what happens. How are you other pioneers doing with yours?