Similac Alimentum Infant Formula With 2-Fl Hmo Is The First And Only Hypoallergenic Infant Formula With 2-Fl Hmo, A Unique Immune-Nourishing Ingredient. It Starts Reducing Colic Symptoms Due To Protein Sensitivity In Most Babies Within 24 Hours, So Your Baby Can Start Feeling Better Today. * Due To Protein Sensitivity. Based On A Clinical Study With Similac Alimentum Ready To Feed Without Dha, Ara, 2-Fl Hmo, Lutein, And Betacarotene In A Small Group Of Infants Experiencing Colic Symptoms Due To Cows Milk Protein Sensitivity. Data On File, Study Ac84, August 2004. Abbott Nutrition, Columbus, Ohio.