when it works(it was my third time before i got a good flush), it was one of the most healing experiences of my life. i dont even have to know what the green stones were or the facts regarding any aspect of it for me to know what i experienced. i would recommend it to anyone who wants to bring their level of health up a notch or two. i have done seven so far and i will do more. that is no deception, that is just fact.