you could try Gentelease we are going to try changing to that in 3 or 4 months from now. We are on Nutramigen which is rather pricey, but if you are only doing one bottle/day, it may be a good option. Many moms are on Alimentum which is the same as Nutramigen, just made by a different company. We all use either RTF or Concentrate which are more expensive than the powders. Also make sure you try the Dr Brown’s bottles, they have made a huge difference in Cooper’s gas.