We started with [...]which seemed to be good for a few weeks and then noticed our daughter was having painful bowel movements and gas episodes so we switched to [...] at the suggestion of our pediatrician. Again, this seemed to be helping for a few weeks and then things resumed like they were before. We then switched to a soy formula and saw no improvement. Finally made the change to Gerber Good Start Gentle and what a miracle!! No more painful bowel movements or gas and less spit-up. All of this for a better price and a happier baby.