Looked at it many years go. Very expensive given that you'd have to take it for many months/years to see results. I ended up buying vitamins separately...

Here is a link to what I believe is the best video on youtube with the latest and greatest details on current and up and coming treatments as well as recommended vitamins and their dosages...etc.

Hope this helps: Dr. Pearl E. Grimes MD video:
https://www.youtube.com/watch?v=Y-MJ7Wdlj18