They sell similar products now at health food and nutrition stores and even at Trader Joes, that are much cheaper.
I did try it after chemo once my Dr allowed me to use supplements again because a friend had touted it as the wonder stuff that would help me feel better.
I didn't feel any better using it than I did when I stopped after the first 2 month supply. She then told me it takes 6 months to get into your system and clean it all up. 6 months of that would have been expensive.
If you go to any nutrition store like Vitamen shoppe just ask the clerk and they will tell you what you could try.