Gerber Good Start SoothePro Formula is clinically shown to support sensitive tummies. This formula offers nutrition for babies up to 12 months experiencing colic, mild spit-ups, gas, excessive crying, fussiness and uncomfortable poops. This product is designed to reduce fussiness within the first 24 hours. This has easy to digest proteins that promote soft poop. Active probiotic cultures (probiotic l. reuteri) are clinically shown to reduce crying time up to 50% in colicky infants and reduce frequency of mild spit-ups.* Gerber SoothePro also contains HMO (human milk oligosaccharides), a probiotic like those found at significant levels in breastmilk. *Probiotic L. reuteri is the only probiotic clinically shown to be effective for reducing colic & spit-ups, based on published data as of February 2020.