I tried this product after trying EVERYTHING I could to stop my baby from crying! He was on Similac Advanced in the hospital, and we continued to give him this when we got home, he was a crying mess. Constantly screaming with gas pains, I tried everything new bottles, gripe water, gas drops, switching to the sensitive formula ...nothing worked. So I decided why not try this, withing a day or so he stopped crying constantly. The only thing I did not like about this is constipation, he got very constipated on the formula, but that cleared up with a little bit of Dr recommended prune juice.