Man I'm willing to give it a try! Just let me know what I need to do or tell you and I'll do it. We'll see what happens. I reacted poorly to two try's of preservative free b12 injections; one from Dr. Cheney and the other from Dr. Holtorf. I felt disoriented, had a strange taste in my mouth, felt weak, etc. Both elicited the same reaction. That's my only experience with B12.