Nerve Regeneration & Repair: The therapy stimulates ATP production in cells, providing the energy needed for damaged nerve fibers to repair and regenerate. I have used a red light boot for my SFN for a few months now. It is my understanding that it takes some time to regenerate nerves. It also involves addressing the cause of you neuropathy. Your nerve damage didn’t happen overnight and will probably take a long time to repair them if possible. It is a comforting heat if you have cold feet sensations. I’m sticking with it. I will do whatever it takes to help alleviate my Small Fiber Neuropathy. Good luck to you. Think positive!