--though it tends to be like a lot of other things--works for some and not others.

It seems to be particularly helpful in those situations in which the neuropathy is caused by microvascular compromise, such as indiabetic or vascular/connective tissue autoimmune situations. This is due to the effect of light wavelengths on nitric oxide and subsequent improvement in small vessel circulation. If neuropathy is caused by compressive issues in the spine or nerve roots, though, I'd speculate that it wouldn't be quite as effective--improved circulation is always a good thing, but the fundamental cause in that situation would not be addressed.