This stuff is a God send! My gassy daughter would not sleep before we started giving her this before bed. Now she can go a day or two without it cause she is trained to sleep around the same time every night, but she still does not sleep as long or as much through till the morning. We started at 3 months and she is now 5 months. However, this does nothing for my twin normal 5 month old boy, whom I gave it to to see if he would sleep on a car trip. My son faught this night time gripe formula to the point that I would argue it did not work if I had tried it on him first. But if someone has a colicky baby, I'd definitely go with this formula. We found out that my girl has gas & ibs from milk lactose and milk protein & she is better now that she is on a soy formula, but she would never have gotten sleep early on without this. We administer this to her in a bottle with 5ml of water to help carry it. My daughter loves the taste too