I have not, but many of the ingredients are legitimately ones that have shown to improve nerve pain in some cases, so I think it's worth a try if you can afford it. You may be able to source the ingredients separately at less cost, but you don't know which are the ones that will help you. I suppose if you take this and it helps you, then you can start trying the ingredients individually, but not all supplement quality is the same, so be choosy about what you buy. My 2c.
Ron