March 4, 2021 I had bloodwork done and my creatinine was 1.59. Started taking Revive Kidney about 2 weeks later. I take 1/2 a serving daily(3 pills AM & 3 PM). Just got bloodwork again on June 30, 2021 and my creatinine levels were .94. I actually increased my protein intake quite significantly during this period as well. Pleased for sure!