A scan showing kidneys working slightly below normal without blockages is reassuring, as it means there is no immediate obstruction. Renosave is often used as a supportive supplement to help protect kidney cells, but whether to start it or simply monitor your function with blood tests depends on your overall trends in GFR and blood pressure. I highly recommend consulting a nephrologist (kidney specialist) for a definitive plan. They can help you weigh the benefits of starting Renosave versus monitoring your kidneys closely with regular, simple blood and urine tests.