I'm a physician that bought this product to help my baby with her colic. I found this after reading some research supporting the use of Lactobacillus Reuteri for colic- and this is one of the few products i could find that has that bacteria. She went from crying 3-4 hours every evening for weeks to being a normal baby in about 4 days time of using this product. It did the job. I do caution that it can cause bloating, loose stools and stomach discomfort for a few days after starting to use it. For a baby with colic this is probably no worse than what they already have.