Compare to the nutrition of Nutramigen and Similac Alimentum. Parent's Choice Hypoallergenic Infant Formula Powder with Iron is clinically studied to help manage colic due to cow's milk allergy. Lactose free and gluten free. For clump-free formula, always add powder to warm water and shake for at least 30 seconds. Warming formula above, or using water warmer than 100°F/40°C, will compromise the probiotic culture. This product differs in appearance and taste compared to milk- or soy-based formulas. It may separate when chilled. Simply shake well prior to feeding. Non-GMO. No artificial growth hormones. Alimentum is a registered trademark of Abbott Laboratories. Nutramigen is a registered trademark of Mead Johnson & Co. Parent's Choice Hypoallergenic Infant Formula is NOT made by or affiliated with Abbott Laboratories or Mead Johnson & Co. Parent's Choice Hypoallergenic Infant Formula does not contain the identical proprietary ingredient blend of prebiotics, patented levels of nucleotides, lutein and lycopene in Alimentum. Non-GMO. Ingredients not genetically modified. The product may contain trace levels of genetically engineered material, such as from process sources and manufacturing environments. For colic due to cow's milk allergy. No significant difference has been shown between milk derived from rbST-treated and non-rbST-treated cows.