We started our 8 week old on Evivo after our doctor recommended it and we tried a couple of samples. We noticed an immediate improvement on our son’s bowel movements — he went from having five poopy diapers a day to one or two! His issues with gas decreased dramatically and after regular use of Evivo we no longer get gas bubbles that would cause pain. Our son also was diagnosed with silent reflux in his first month and we’ve noticed that it seems to be improving as well. I’ve told several mom friends about this product and would definitely recommend it as we have had so much success.