Evivo resolved our 3 month old son's stomach and intestinal issues in less than a week. For the first 10 weeks we battled constantly bloody stool, constant gas pain, 2 hour sleep cycle, trips to the ER and a mother that blamed herself and was only eating lamb, rice and yellow squash in an attempt to provide him some relief. After six days on Evivo, he is now symptom free. The bloody stool is gone, the stomach gas has fallen to normal burpping resolution, intestinal gas has all but disappeared, no ER or doctor visits, 6 hour sleep cycle and mama has gone back to her normal diet with no ill effects to our son. Is it expensive (compared to other probiotics)...yes...is it worth it to us...YES! For us, it is a case of you get what you pay for and we will continue to use Evivo. We cannot promise the same results for you, but it has been the best solution for our son. If you are like us, try it and see, you have nothing to lose and possible relief for all to gain.