I used the Rebuilder for 3 months, precisely following directions. It didn't help me. However, the company honored their money-back guarantee and allowed me to return it. There was a restocking fee so the refund wasn't in full, but I did get back most of the cost. The customer service was excellent and I stayed in touch with the on a regular basis, asking for advice. I think it does work for some people so it might be worth a try.