I have been on the product for less than 30 days. Before taking NerveReverse, I was on Lyrica and Tramadol to help control my pain and to help me sleep. I no longer have to take the Tramadol. I can finally feel my fingers enough to pick up small screws and bolts. My feet aren’t hurting as much and I didn’t have any side effects. I am surprised it worked as quickly as it did. This is a very good product!!