Our daughter was having issues with spitting up/acid reflux and gas. She would cry and be super uncomfortable, stiff and arching her back, for sometimes 6 hours at a time. It was so sad! I saw an ad for Evivo, did some research, read the reviews and decided to try it. The first day we gave it to her, she slept 10 hours straight that night. At 6 weeks old! I think the Evivo gave her little digestive system a break and she could finally relax and rest. She's now 2 months old, so we've been using Evivo for a few weeks, and she is a changed baby. She is able to relax, she's no longer in pain, and she sleeps! She has periods a calm awake time every day and is happy. We are SO grateful.