the protocol is just vitamins and they could be purchased separately at less cost but would not be as convenient. However, my concern is this. I took the protocol for 4 months and saw no improvement but planned to continue to try it but after I posted about a new treatment being studied by Winsantor that has shown great promise including regeneration of nerves as evidenced in EMG and nerve biopsy in was removed from the group and blocked so I can not even see the group. Any group that is this controlling can't be trying to help people they are just selling more expensive vitamins. I know of others who are removed from the group if they even hint that the protocol is not helping.