We have only been using Evivo for a month now but we have noticed such a difference! After being told about Evivo from a friend, we immediately thought to give it a try. We were pretty desperate as our little one constantly seemed uncomfortable any time she was awake and appeared to be struggling to make bowel movements. After just a week we noticed our daughter had appeared more content during wake times and her bowel movements have become way more regular occurring either daily or every other day. I am very pleased with our results thus far and will definitely continue using Evivo.